"Do Somethin" is a song recorded by American singer Britney Spears for her first greatest hits album, "" (2004). It was written and produced by Christian Karlsson and Pontus Winnberg (known collectively as Bloodshy & Avant), with additional writing by Henrik Jonback and Angela Hunte. The song was never intended to be released as a single. Spears, however, wanted to shoot a music video for it, and had to convince her record company. It was then released on February 14, 2005 by Jive Records as the second single from the album worldwide except North America. The dance-pop song features usage of electric guitars, and its lyrics allude to having a good time and not caring about other people's judgement.