Gary Jules (born March 19, 1969 as Gary Jules Aguirre, Jr.) is an American singer-songwriter, best known for his cover of Tears for Fears' third single "Mad World", which he recorded together with friend Michael Andrews for the film Donnie Darko. It became the UK Christmas Number One single of 2003. Since then it has been used on popular American TV shows, in a commercial for the critically acclaimed video game Gears of War, an episode of CSI: Las Vegas, and a Season 5 episode of the medical drama House.