Metallica is an American heavy metal band. The band was formed in 1981 in Los Angeles by vocalist/guitarist James Hetfield and drummer Lars Ulrich and has been based in San Francisco for most of its career. The band's fast tempos, instrumentals and aggressive musicianship made them one of the founding "big four" bands of thrash metal, alongside Megadeth, Anthrax, and Slayer. Metallica's current lineup comprises founding members and primary songwriters Hetfield and Ulrich, longtime lead guitarist Kirk Hammett, and bassist Robert Trujillo. Guitarist Dave Mustaine (who formed Megadeth after being fired from the band) and bassists Ron McGovney, Cliff Burton, and Jason Newsted are former members of the band.

Nirvana was an American rock band formed in Aberdeen, Washington, in 1987. Founded by lead singer and guitarist Kurt Cobain and bassist Krist Novoselic, the band went through a succession of drummers, most notably Chad Channing, and then recruited Dave Grohl in 1990. Nirvana's success popularized alternative rock, and they were often referenced as the figurehead band of Generation X. Their music maintains a popular following and continues to influence modern rock culture.

Aerosmith is an American rock band formed in Boston in 1970. The group consists of Steven Tyler (lead vocals), Joe Perry (guitar), Tom Hamilton (bass), Joey Kramer (drums) and Brad Whitford (guitar). Their style, which is rooted in blues-based hard rock, has also incorporated elements of pop rock, heavy metal, glam metal, and rhythm and blues, and has inspired many subsequent rock artists. They are sometimes referred to as "the Bad Boys from Boston" and "America's Greatest Rock and Roll Band". The primary songwriting team of Tyler and Perry is often known as the "Toxic Twins".

Perry and Hamilton, originally in a band together called the Jam Band, met up with Tyler, Kramer, and guitarist Ray Tabano, and formed Aerosmith; in 1971, Tabano was replaced by Whitford. They released a string of multi-platinum albums starting with their eponymous debut in 1973, followed by Get Your Wings in 1974. The band broke into the mainstream with Toys in the Attic (1975) and Rocks (1976). Draw the Line and Night in the Ruts followed in 1977 and 1979. Throughout the 1970s, the band toured extensively and charted a dozen Hot 100 singles, including their first Top 40 hit "Sweet Emotion" and the Top 10 hits "Dream On" and "Walk This Way". By the end of the decade, they were among the most popular hard rock bands in the world and developed a following of fans, often referred to as the "Blue Army". Drug addiction and internal conflict led to the departures of Perry and Whitford in 1979 and 1981. The band did not fare well and the album Rock in a Hard Place (1982) failed to match previous successes.

The Beatles were an English rock band, formed in Liverpool in 1960, that comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr. They are regarded as the most influential band of all time and were integral to the development of 1960s counterculture and popular music's recognition as an art form. Rooted in skiffle, beat and 1950s rock 'n' roll, their sound incorporated elements of classical music and traditional pop in innovative ways; the band also explored music styles ranging from folk and Indian music to psychedelia and hard rock. As pioneers in recording, songwriting and artistic presentation, the Beatles revolutionised many aspects of the music industry and were often publicised as leaders of the era's youth and sociocultural movements.

Black Sabbath were an English rock band formed in Birmingham in 1968 by guitarist Tony Iommi, drummer Bill Ward, bassist Geezer Butler and vocalist Ozzy Osbourne. They are often cited as pioneers of heavy metal music. The band helped define the genre with releases such as Black Sabbath (1970), Paranoid (1970) and Master of Reality (1971). The band had multiple line-up changes following Osbourne's departure in 1979 and Iommi is the only constant member throughout their history.

Limp Bizkit is an American rap rock band from Jacksonville, Florida. Its lineup consists of lead vocalist Fred Durst, drummer John Otto, guitarist Wes Borland, turntablist DJ Lethal and bassist Sam Rivers. The band's music is marked by Durst's angry vocal delivery and Borland's sonic experimentation. Borland's elaborate visual appearance, which includes face and body paint, masks, and uniforms, also plays a large role in Limp Bizkit's live shows. The band has been nominated for three Grammy Awards, sold 40 million records worldwide, and won several other awards. The band has released 26 singles, the most notable of which include "Nookie", "Re-Arranged", "Break Stuff", "Take a Look Around", "Rollin' (Air Raid Vehicle)", "My Generation", "My Way", "Eat You Alive", and their cover of The Who's 1971 single "Behind Blue Eyes", all of which have charted within the top 20 of the US Alternative Airplay Chart.

Three Days Grace is a Canadian rock band formed in Norwood, Ontario in 1992 originally as "Groundswell" and played in various local Norwood backyard parties and area establishments before disbanding in 1995 and regrouping in 1997.

Based in Toronto, the band's original line-up consisted of guitarist and lead vocalist Adam Gontier, drummer and backing vocalist Neil Sanderson, and bassist Brad Walst. In 2003, Barry Stock was recruited as the band's lead guitarist, making them a quartet. In 2013, Gontier left the band and was replaced by My Darkest Days' vocalist Matt Walst, the younger brother of Brad Walst.

Currently signed to RCA Records, they have released seven studio albums, six of which at three-year intervals: Three Days Grace in 2003, One-X in 2006, Life Starts Now in 2009, Transit of Venus in 2012, Human in 2015, and Outsider in 2018. Their seventh studio album Explosions was released on May 6, 2022. The first three albums have been RIAA certified 2× platinum, 3× platinum, and platinum, respectively, in the United States. In Canada, they have been certified by Music Canada as platinum, triple platinum, and double platinum, respectively. The band has 17 No. 1 songs on the Billboard Hot Mainstream Rock Tracks chart and 3 No. 1 hits on Alternative Songs.

Rob Zombie is an American musician, singer, songwriter, record producer, filmmaker, and actor. His music and lyrics are notable for their horror and sci-fi themes, and his live shows have been praised for their elaborate shock rock theatricality. He has sold an estimated 15 million albums worldwide.

Drowning Pool is an American rock band formed in Dallas, Texas, in 1996. The band was named after the 1975 film The Drowning Pool. Since its formation, the band has consisted of guitarist C.J. Pierce, bassist Stevie Benton, and drummer Mike Luce, as well as a revolving cast of vocalists, the latest being Jasen Moreno.

After the release of their debut album, Sinner (2001), original vocalist Dave Williams was found dead on August 14, 2002 from heart disease. Jason Jones, who replaced Williams in 2003, recorded one album, Desensitized (2004), but left in 2005 due to musical differences. Ryan McCombs of Chicago-based band SOiL, later replaced Jones and released two albums, Full Circle (2007) and Drowning Pool (2010), making it the first time Drowning Pool had not switched singers after just one album. However, McCombs left the band in 2011 to rejoin SOiL. Jasen Moreno was announced as McCombs' replacement in 2012, and the band has since recorded three albums with him: Resilience (2013), Hellelujah (2016) and Strike a Nerve (2022). This makes Moreno the band's first lead singer to perform on three albums.

Within Temptation is a Dutch symphonic metal band founded in April 1996 by vocalist Sharon den Adel and guitarist Robert Westerholt. They have been classified by critics as gothic metal and symphonic metal, although each album contains other influences outside these genres. Their most prominent and well-known sound is described as symphonic metal, although their earlier material, such as debut album Enter, was mostly gothic metal, with Enter also having a hint of doom metal. In an interview, den Adel said they fell into a symphonic rock genre with various influences. In another interview, den Adel stated that "We consider ourselves more an atmospheric melodic symphonic metal/rock band... In my opinion, we are not a gothic band but we have gothic elements".

The Doors were an American rock band formed in Los Angeles in 1965, with vocalist Jim Morrison, keyboardist Ray Manzarek, guitarist Robby Krieger, and drummer John Densmore. They were among the most influential and controversial rock acts of the 1960s, partly due to Morrison's lyrics and voice, along with his erratic stage persona. The group is widely regarded as an important figure of the era's counterculture.

James Marshall "Jimi" Hendrix was an American guitarist, singer and songwriter. Although his mainstream career spanned only four years, he is widely regarded as one of the most influential electric guitarists in the history of popular music, and one of the most celebrated musicians of the 20th century. The Rock and Roll Hall of Fame describes him as "arguably the greatest instrumentalist in the history of rock music."

Arch Enemy is a Swedish melodic death metal band, originally a supergroup from Halmstad, formed in 1995. Its members were in bands such as Carcass, Armageddon, Carnage, Mercyful Fate, Spiritual Beggars, The Agonist, Nevermore, and Eucharist. It was founded by Carcass guitarist Michael Amott along with Johan Liiva, who were both originally from the death metal band Carnage. The band has released eleven studio albums, three live albums, three video albums and four EPs. The band was originally fronted by Johan Liiva, who was replaced by German vocalist Angela Gossow in 2000. Gossow left the band in March 2014 to become the group's manager and was replaced by Canadian vocalist Alissa White-Gluz.

Fear Factory is an American heavy metal band formed in Los Angeles in 1989. Throughout the band's career, they have released ten full-length albums and have evolved through a succession of sounds, all in their main style of industrial metal. Over the years, Fear Factory has seen frequent changes in its lineup, with lead vocalist Burton C. Bell being the only consistent member for 31 years until his departure in 2020. Other than guitarist Dino Cazares, there are no original members left in its current lineup. The band went on hold in March 2002 following some internal disputes, but resumed activity a year later without founding member Cazares. Previous bassist Christian Olde Wolbers replaced him as the new guitarist, and bassist Byron Stroud joined the band. In April 2009, a new lineup was announced. Cazares returned as guitarist, and Gene Hoglan as drummer. Bell and Stroud reprised their respective roles, and this lineup recorded the band's seventh studio album titled Mechanize (2010). Former members Wolbers and Raymond Herrera—both of whom were playing in Arkaea—disputed the legitimacy of the new lineup, and a legal battle from both parties had begun. Despite this, Fear Factory has since released three more albums: The Industrialist (2012), Genexus (2015) and Aggression Continuum (2021).

Korn is an American nu metal band from Bakersfield, California, formed in 1993. The band is notable for pioneering the nu metal genre and bringing it into the mainstream.

Rammstein is a German Neue Deutsche Härte band formed in Berlin in 1994. The band's lineup—consisting of lead vocalist Till Lindemann, lead guitarist Richard Kruspe, rhythm guitarist Paul Landers, bassist Oliver Riedel, drummer Christoph Schneider, and keyboardist Christian "Flake" Lorenz—has remained unchanged throughout their history, along with their approach to songwriting, which consists of Lindemann writing and singing the lyrics over instrumental pieces the rest of the band has completed beforehand. Prior to their formation, some members were associated with the punk rock acts Feeling B and First Arsch.

Slipknot is an American heavy metal band formed in Des Moines, Iowa, in 1995 by percussionist Shawn Crahan, drummer Joey Jordison and bassist Paul Gray. After several lineup changes in its early years, the band settled on nine members for more than a decade: Crahan, Jordison, Gray, Craig Jones, Mick Thomson, Corey Taylor, Sid Wilson, Chris Fehn, and Jim Root. Bassist Gray died on May 24, 2010, and was replaced during 2011–2014 by Donnie Steele. Jordison was dismissed from the band on December 12, 2013. Steele left during the recording sessions for .5: The Gray Chapter. The band found replacements in Alessandro Venturella on bass and Jay Weinberg on drums. After the departure of Jordison, as of December 2013 the only founding member in the current lineup is percussionist Crahan. Fehn was also dismissed from the band in March 2019 prior to the writing of We Are Not Your Kind and was replaced by Michael Pfaff.

Soil is an American rock band that was formed in Chicago, Illinois in 1997. After some independent releases, the band was the first rock group signed to J Records and achieved mainstream success with their major label debut, Scars, in 2001. The J Records second album, Redefine, was released in 2004 and the band embarked upon a worldwide tour to follow. In late 2004, frontman Ryan McCombs left the group. He would go on to become the new vocalist of Drowning Pool the following year.

Pierce the Veil is an American rock band from San Diego, California, United States. Formed in 2006, the band was founded by brothers Vic and Mike Fuentes after the disbandment of the group Before Today (formerly Early Times), which was formed out of the San Diego punk rock scene. Other members of the band include Jaime Preciado (bass) and Tony Perry (lead guitar). Pierce the Veil has released four studio albums and has toured worldwide since the release of their debut album, A Flair for the Dramatic in 2007. The band released their second full-length studio album, titled Selfish Machines in 2010. Their third album, Collide with the Sky, was released in 2012, and is their first album under the Fearless Records label. Featuring the hit first single "King for a Day", the album debuted at No. 12 on the Billboard 200. Their fourth and latest album, Misadventures, was released on May 13, 2016.

Opeth is a Swedish progressive metal/rock band from Stockholm, formed in 1990 by lead vocalist David Isberg. The group has been through several personnel changes, including the replacement of every single original member; notably Isberg in 1992. Mikael Åkerfeldt has been Opeth's frontman and primary songwriter since Isberg's departure. Opeth has consistently incorporated progressive, folk, blues, classical, and jazz influences into its usually lengthy compositions, as well as strong influences from death metal, especially in their early works. Many songs include acoustic guitar passages and strong dynamic shifts, as well as death growls. Opeth is also well known for their incorporation of Mellotrons in their work. The band rarely made live appearances supporting their first four albums, but since conducting their first world tour after the 2001 release of Blackwater Park, they have led several major world tours.

Skins is a British teen comedy drama television series that follows the lives of a group of teenagers in Bristol, South West England, through the two years of sixth form. Its controversial story-lines have explored issues like dysfunctional families, mental illness (such as depression, eating disorders, post-traumatic stress disorder, and bipolar disorder), adolescent sexuality, gender, substance abuse, death, and bullying.

Each episode generally focuses on a particular character or subset of characters and the struggles they face in their lives, with the episodes named after the featured characters. The show was created by father-and-son television writers Bryan Elsley and Jamie Brittain for Company Pictures, and premiered on E4 on 25 January 2007.

Moshi Monsters was a British web browser massively multiplayer online role-playing game (MMORPG) aimed at children aged 6–12, with over 80 million registered users in 150 territories worldwide. Users could choose from one of six virtual pet monsters they could create, name and nurture. Once their pet had been customized, players could navigate their way around Monstro City, take daily puzzle challenges to earn 'Rox', play games, personalize their room and communicate with other users in a safe environment, although this has been disputed.

IMVU is an online virtual world and social networking site. IMVU was founded in 2004 and was originally backed by venture investors Menlo Ventures, AllegisCyber Capital, Bridgescale Partners, and Best Buy Capital. IMVU members use 3D avatars to meet new people, chat, create, and play games. In 2014, IMVU had approximately six million active players, and had the largest virtual goods catalog of more than 6 million items as of 2011. The business was previously located in Mountain View, California. It was known as one of the leading practitioners of the lean startup approach.

Stardoll is a browser-based game from Glorious Games. One of the world's largest online fashion communities, Stardoll has reached over 400 million users as of January 2016.

Focusing on an audience that is often overlooked by the gaming industry, Stardoll is open to everyone but focuses on providing a place for teens and young women to express their creativity and manage their own virtual fashion world, engage in creative social activities with other players around the world, and participate in mini games and challenges. 

Stardoll first appeared as a personal website featuring paper dolls from Finnish creator and enthusiast, Liisa Wrang. Inspired by a childhood passion for paper dolls, Wrang started drawing dolls and accompanying wardrobes and taught herself web design. Her personal homepage rapidly became a popular destination for teens. In 2004, with the help of her son, she upgraded the site and called it Paperdoll Heaven.

Poptropica is an online role-playing game, developed in 2007 by Pearson Education's Family Education Network, and targeted towards children aged 6 to 15. Poptropica was primarily the creation of Jeff Kinney, the author of the Diary of a Wimpy Kid series. As of 2015, he remains at the company as the Creative Director. The game primarily focuses on problem-solving through game quest scenarios, called "islands." Islands all center on a problem that the player must resolve by going through multiple obstacles, collecting and using items, talking to various characters, and completing goals. All islands, upon completion, award "credits," which are non-negotiable currency that may be used to buy costumes and special effects in the Poptropica store.

ourWorldis a virtual world containing a range of online games and activities. It was developed by FlowPlay, and is aimed at the teen and tween demographic.

ourWorld combines an online virtual world with a range of casual gaming activities. Each player has an avatar and a condo which can be decorated.

An in-game currency, "Flow", is earned by talking, dancing, eating and drinking, and playing games. Flow can be exchanged for experience points and coins. ourWorld operates on a microtransaction business model which allows players to purchase in-game "gems". Coins and gems are used to buy items for their avatar such as clothing, accessories or furniture. As players earn experience, they level up. This earns them prizes such as dance moves, access to new areas, vehicles, and privileges.

Fantage was a MMORPG (massively multiplayer online role-playing game) involving a virtual world containing a range of online games and activities, developed by Fantage Inc. The game features a customizable cartoon avatar, called a "Fantagian", that users can customize with items ranging from hair to clothing and accessories. Fantage released to the general public on March 17, 2008 and had since expanded into a large online community— the game had over 16 million registered users by January 2012 and over 30 million by December 2014.

The game was designed for the ages of 6 to 16. According to its founders, Fantage was focused on child safety, made possible by a three-tiered safety system. This safety system had several features, such as professional chat moderation, automatic word filtering, an in-game user reporting system, and varying chat options for parents.

Gamelab was an independent game studio in New York City, New York founded by game designer Eric Zimmerman and Peter Seung-Taek Lee in 2000. It is best known for creating Diner Dash, one of the most downloaded games of all time (over half a billion times across multiple platforms in its first six years), as well as its two spin-off companies, the non-profit Institute of Play and the online game and community site Gamestar Mechanic.

Zimmerman and Lee (with audio by Michael Sweet) created a game called BLiX, which was named a Finalist (and eventually won Best Audio) at the 2000 Independent Games Festival at the Game Developers Conference, Zimmerman and Lee then incorporated gameLab and used an advance on BLiX royalties from their exclusivity deal with Shockwave.com to open an office in downtown Manhattan. gameLab released 34 video games on multiple platforms between 2000 and 2009, published by companies like LEGO, HBO, PlayFirst, VH-1, and iWin, plus eight massively multiplayer social games created exclusively for and played at the yearly Game Developers Conference from 2001 to 2008.