Biffy Clyro are a Scottish rock band from Kilmarnock, comprising Simon Neil (guitar, lead vocals), James Johnston (bass, vocals) and Ben Johnston (drums, vocals). "'Mon the Biff!" or "Mon the Biffy!" is a well known chant among Biffy fans, usually shouted in between songs at gigs, or before the band comes on stage. The band have never actually disclosed exactly where the name 'Biffy Clyro' originated.
After their first three albums, the band expanded their following significantly with the release of their fourth, Puzzle in 2007 creating more mainstream songs with simpler rhythms and distancing themselves from their more unusual dissonant style that was present in the previous three albums. Puzzle peaked at number 2 on the official UK album charts on the 16th of June 2007. The album went gold in the UK, selling over 100,000 units. Biffy Clyro's popularity was built upon further in 2008 and 2009 with the release of the singles "Mountains" and "That Golden Rule", which both reached the top 10 of the UK singles chart. Their next album, Only Revolutions, reached #3 in the UK chart and went gold within days of its release in 2009, later going platinum in 2010 and was nominated for the Mercury Music Prize. Only Revolutions includes the UK hit singles, " Mountains", "That Golden Rule" and "Many of Horror" all of which reached the UK Top Ten singles charts. The latter reached number eight on the UK Singles Charts after The X Factor 2010 winner, Matt Cardle covered the song. It became the UK number one Christmas single for the year of 2010.