Biffy Clyro are a Scottish alternative group from Ayrshire whose members are Simon Neil (lea vocals, guitar), James Johnston (vocals, bass guitar) and Ben Johnston (vocals, drums). The band have had a dedicated following since the mid-1990s (producing an EP and four albums in total) and have expanded their following significantly in 2007 with their fourth album, Puzzle. This album is seen as more accessible and has won wide critical acclaim. Puzzle has been championed on TV and radio, and Biffy have promoted it with a tour and many festival performances over the summer of 2007 (including a snippet of a live performance being used as the opening titles for the BBC coverage of T in the Park).