Lostprophets /lɒstˈprɒfɪts/ was a band from Pontypridd, Wales formed in 1997. Founded by lead vocalist and lyricist Ian Watkins, bassist (later guitarist) Mike Lewis, drummer Mike Chiplin and guitarist Lee Gaze, they were originally a side-project to hardcore punk band Public Disturbance. They were also part of the Cardiff music scene.
Lostprophets released five studio albums, with their final release Weapons released on 2 April 2012. The band achieved two Top 10 hits on the UK Singles Chart ("Last Train Home" and "Rooftops"), one number-one single on the US Alternative Songs chart ("Last Train Home"), several Kerrang! Awards and nominations, and sold 3.5 million albums worldwide.