Biffy Clyro is a three-piece alternative rock band which formed in Kilmarnock, Scotland in 1995. The band consists of Simon Neil (vocals, guitar), James Johnston (bass, vocals) and his twin brother Ben (drums, vocals). The band has released eight albums since their formation and are currently working on their 9th: "Blackened Sky" (2002), "The Vertigo of Bliss" (2003), "Infinity Land" (2004), "Puzzle" (2007), "Only Revolutions" (2010) , "Opposites" (2013) and "Ellipsis" (2016), "Balance, Not Symmetry" (2019).

Biffy, as they are often referred to, utilise a quiet/loud dynamic, constructing songs that can range from a whisper-quiet pick on the guitar, to huge walls of noise with massive distortion and crashing drums. Their sound has simplified somewhat in recent times yet still occasionally contains complex time signatures and heavy riffs. While Simon Neil sings lead, all three members provide vocals. "'Mon the Biffy!" is a well known chant amongst Biffy fans; it is usually shouted in between songs at gigs, or before the band come on stage. Some fans have reacted poorly to the band's recent output.

The first incarnation of what would eventually become Biffy Clyro was formed in 1995 by fifteen-year-old Irvine-born, Ayr-raised guitarist Simon Neil, who recruited Kilmarnock-born Ben Johnston and someone known only as Barry on drums and bass respectively, calling themselves Screwfish. Barry was soon replaced by James Johnston, Ben's twin brother, and the three spent the next two years rehearsing, writing and covering songs. In 1997, they played their first gig as the support for a band called Pink Kross at a local youth centre. The trio then moved to Glasgow, where Neil went to the University of Glasgow and the Johnston twins went to Stow College, studying Electronics with Music and Audio Engineering respectively.They then progressed onto the bigger stage