Andy Nicholson is an English musician, DJ and producer, best known as the original bass guitarist of the Sheffield band Arctic Monkeys, which he left in 2006. In 2008 he founded Mongrel with Jon McClure of Reverend and the Makers. In 2009 he became the bassist for ex-Milburn (band) frontman Joe Carnall's band The Book Club, but left later that year to join Reverend and the Makers. He is currently producing and performing in hip-hop group Clubs & Spades with Maticmouth from Reverend Soundsystem.