Gary Jules Aguirre Jr. is an American singer-songwriter, known primarily for his cover version of the Tears for Fears song "Mad World", which he recorded with his friend Michael Andrews for the film Donnie Darko. It became the UK Christmas number-one single of 2003.

Tears for Fears are an English pop rock band formed in Bath in 1981 by Curt Smith and Roland Orzabal. Founded after the dissolution of their first band, the mod-influenced Graduate, Tears for Fears were associated with the synth-pop bands of the 1980s, and attained international chart success as part of the Second British Invasion.