Chameleon Circuit were an English rock band known for creating music inspired by the British television series Doctor Who. Composed of popular UK YouTube vloggers and Doctor Who fans, the band released their self-titled debut album on 1 June 2009.

At the beginning of 2011, Chameleon Circuit, in their new line-up of Alex Day, Charlie McDonnell, Liam Dryden, Ed Blann and American YouTuber Michael Aranda (who had originally signed up under a producing role), began work on their second album Still Got Legs. It was released on 12 July 2011 and charted on the UK iTunes Album and Rock Album charts, and on the Billboard Heatseekers chart in the United States at #23.