Delirious? are an English Christian rock and worship band, featuring Martin Smith on vocals and guitar, Stuart Garrard (also known as Stu G) on guitar and backing vocals, Jon Thatcher on bass guitar, Tim Jupp on keys and piano, and Paul Evans on drums and percussion. Former drummer Stew Smith left the band at the end of April 2008. His retirement was announced first at his last UK performance and then at his last ever performance at Hillsong Church in Australia.
Their 1994 song "I Could Sing of Your Love Forever" has been called a "modern worship classic" and is their best-known song in the United States.
It was announced via a press release on the 6th of July 2008 that Delirious? would break up at the end of 2009.