Biffy Clyro are a Scottish rock band that formed in Kilmarnock, East Ayrshire, composed of Simon Neil and twin brothers James and Ben Johnston. Currently signed to 14th Floor Records, they have released nine studio albums, six of which reached the top five in the UK Albums Chart. Three consecutive studio albums peaked at number one in the UK official albums chart. After their first three albums, the band expanded their following significantly in 2007 with the release of their fourth album Puzzle, which peaked at No. 2 on the UK Albums Chart and later went platinum in the UK in 2012.

Simon Alexander Neil is a Scottish singer, guitarist and songwriter. He is known for his work in the bands Biffy Clyro, Marmaduke Duke, and also Empire State Bastard, with Mike Vennart.