Tool is an American rock band from Los Angeles. Formed in 1990, the group's line-up includes vocalist Maynard James Keenan, guitarist Adam Jones and drummer Danny Carey. Justin Chancellor has been the band's bassist since 1995, replacing their original bassist Paul D'Amour. Tool has won four Grammy Awards, performed worldwide tours, and produced albums topping the charts in several countries.

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.

A Perfect Circle is an American rock band formed in Los Angeles, California in 1999 by guitarist Billy Howerdel and Tool vocalist Maynard James Keenan. A Perfect Circle has released four studio albums, the first three during the early 2000s: Mer de Noms, their debut album in 2000, and followed up by Thirteenth Step in 2003; then in 2004, Emotive—an album of radically re-worked cover songs. Shortly after Emotive's release, the band went on hiatus; Keenan returned to Tool and started up solo work under the band name Puscifer, while Howerdel released a solo album, Keep Telling Myself It's Alright, under the moniker Ashes Divide. Band activity was sporadic in the following years; the band reformed in 2010, and played live shows on and off between 2010 and 2013, but fell into inactivity after the release of their greatest hits album, Three Sixty, and a live album box set, A Perfect Circle Live: Featuring Stone and Echo in late 2013. The band reformed in 2017 to record a fourth album, Eat the Elephant, which was released on April 20, 2018.

Green Day is an American rock band formed in the East Bay of California in 1987 by lead vocalist and guitarist Billie Joe Armstrong, together with bassist and backing vocalist Mike Dirnt. For most of the band's career, they have been a power trio with drummer Tré Cool, who replaced John Kiffmeyer in 1990 before the recording of the band's second studio album, Kerplunk (1991). Touring guitarist Jason White became a full-time member in 2012, but returned to his touring role in 2016. Before taking its current name in 1989, Green Day was called Sweet Children, and they were part of the late 1980s/early 1990s Bay Area punk scene that emerged from the 924 Gilman Street club in Berkeley, California. The band's early releases were with the independent record label Lookout! Records. In 1994, their major-label debut Dookie, released through Reprise Records, became a breakout success and eventually shipped over 10 million copies in the U.S. Alongside fellow California punk bands Bad Religion, the Offspring, Rancid, NOFX, Pennywise and Social Distortion, Green Day is credited with popularizing mainstream interest in punk rock in the U.S.

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.

Robert Nesta Marley was a Jamaican singer, musician, and songwriter. Considered one of the pioneers of reggae, his musical career was marked by fusing elements of reggae, ska, and rocksteady, as well as his distinctive vocal and songwriting style. Marley's contributions to music increased the visibility of Jamaican music worldwide, and made him a global figure in popular culture to this day. Over the course of his career, Marley became known as a Rastafari icon, and he infused his music with a sense of spirituality. He is also considered a global symbol of Jamaican music and culture and identity, and was controversial in his outspoken support for democratic social reforms. In 1976, Marley survived an assassination attempt in his home, which was thought to be politically motivated. He also supported legalisation of marijuana, and advocated for Pan-Africanism.

Bon Jovi is an American rock band formed in 1983 in Sayreville, New Jersey. It consists of singer Jon Bon Jovi, keyboardist David Bryan, drummer Tico Torres, guitarist Phil X, and bassist Hugh McDonald. Original bassist Alec John Such quit the band in 1994, and longtime guitarist and co-songwriter Richie Sambora left in 2013. The band has been credited with "[bridging] the gap between heavy metal and pop with style and ease".

Daft Punk were a French electronic music duo formed in 1993 in Paris by Thomas Bangalter and Guy-Manuel de Homem-Christo. They achieved popularity in the late 1990s as part of the French house movement, combining elements of house music with funk, disco, rock and pop. They garnered acclaim and commercial success and are regarded as one of the most influential acts in dance music.

Disturbed is an American heavy metal band from Chicago, formed in 1994. The band includes vocalist David Draiman, guitarist/keyboardist Dan Donegan, bassist John Moyer, and drummer Mike Wengren. Donegan and Wengren have been involved in the band since its inception, with Moyer replacing former bassist Steve "Fuzz" Kmak and Draiman replacing original lead vocalist Erich Awalt.

Linkin Park is an American rock band from Agoura Hills, California. The band's current lineup comprises vocalist/rhythm guitarist/keyboardist Mike Shinoda, lead guitarist Brad Delson, bassist Dave Farrell, DJ/turntablist Joe Hahn and drummer Rob Bourdon, all of whom are founding members. Vocalists Mark Wakefield and Chester Bennington are former members of the band. Categorized as alternative rock, Linkin Park's earlier music spanned a fusion of heavy metal and hip hop, while their later music features more electronica and pop elements.

Formed in 1996, Linkin Park rose to international fame with their debut studio album, Hybrid Theory (2000), which became certified Diamond by the Recording Industry Association of America (RIAA). Released during the peak of the nu metal scene, the album's singles' heavy airplay on MTV led the singles "One Step Closer", "Crawling" and "In the End" all to chart highly on the US Mainstream Rock chart. The lattermost also crossed over to the nation's Billboard Hot 100. Their second album, Meteora (2003), continued the band's success. The band explored experimental sounds on their third album, Minutes to Midnight (2007). By the end of the decade, Linkin Park was among the most successful and popular rock acts.

Michael Joseph Jackson (August 29, 1958 – June 25, 2009) was an American singer, songwriter, dancer, and philanthropist. Dubbed the "King of Pop", he is regarded as one of the most significant cultural figures of the 20th century. Over a four-decade career, his contributions to music, dance, and fashion, along with his publicized personal life, made him a global figure in popular culture. Jackson influenced artists across many music genres; through stage and video performances, he popularized complicated dance moves such as the moonwalk, to which he gave the name, as well as the robot. He is the most awarded musician in history.

The eighth child of the Jackson family, Jackson made his public debut in 1964 with his older brothers Jackie, Tito, Jermaine, and Marlon as a member of the Jackson 5 (later known as the Jacksons). Jackson began his solo career in 1971 while at Motown Records. He became a solo star with his 1979 album Off the Wall. His music videos, including those for "Beat It", "Billie Jean", and "Thriller" from his 1982 album Thriller, are credited with breaking racial barriers and transforming the medium into an artform and promotional tool. He helped propel the success of MTV and continued to innovate with videos for the albums Bad (1987), Dangerous (1991), HIStory: Past, Present and Future, Book I (1995), and Invincible (2001). Thriller became the best-selling album of all time, while Bad was the first album to produce five US Billboard Hot 100 number-one singles.

The Offspring is an American rock band from Garden Grove, California, formed in 1984. Originally formed under the name Manic Subsidal, the band's current lineup consists of lead vocalist and rhythm guitarist Bryan "Dexter" Holland, lead guitarist Kevin "Noodles" Wasserman and bassist Todd Morse. Over the course of their 39-year career, the Offspring has released ten studio albums and have also experienced a number of lineup changes, most notably with their drummer. Their longest-serving drummer was Ron Welty, who replaced original drummer James Lilja in 1987 and stayed with the Offspring for 16 years. Welty was replaced by Atom Willard in 2003, who was replaced four years later by Pete Parada, who remained as the drummer for the Offspring until he was fired from the band in 2021 for refusing to get vaccinated against COVID-19. Gregory "Greg K." Kriesel (one of the Offspring's co-founders) was their bassist until 2018, when he was fired from the band due to business disputes, thus leaving Holland as the sole remaining original member. Kriesel was replaced by Todd Morse of H2O, who had been the Offspring's touring guitarist since 2009.

Queen are a British rock band formed in London in 1970 by Freddie Mercury (lead vocals, piano), Brian May (guitar, vocals) and Roger Taylor (drums, vocals), later joined by John Deacon (bass). Their earliest works were influenced by progressive rock, hard rock and heavy metal, but the band gradually ventured into more conventional and radio-friendly works by incorporating further styles, such as arena rock and pop rock.

Before forming Queen, May and Taylor had played together in the band Smile. Mercury was a fan of Smile and encouraged them to experiment with more elaborate stage and recording techniques. He joined in 1970 and suggested the name "Queen". Deacon was recruited in February 1971, before the band released their eponymous debut album in 1973. Queen first charted in the UK with their second album, Queen II, in 1974. Sheer Heart Attack later that year and A Night at the Opera in 1975 brought them international success. The latter featured "Bohemian Rhapsody", which stayed at number one in the UK for nine weeks and helped popularise the music video format.

System of a Down is an American heavy metal band formed in Glendale, California, in 1994. Since 1997, the band has consisted of Serj Tankian ; Daron Malakian ; Shavo Odadjian ; and John Dolmayan (drums), who replaced original drummer Andy Khachaturian.

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.

Death Cab for Cutie is an American rock band formed in Bellingham, Washington, in 1997. The band is currently composed of Ben Gibbard, Nick Harmer (bass), Dave Depper, Zac Rae, and Jason McGerr (drums).

Regina Ilyinichna Spektor is a Russian–born American singer, songwriter, and pianist.