While on the set of David Letterman's show, David Gray performed his 1999 hit single, 'Babylon'. The single was originally as the second single for his fourth album, 'White Ladder', and was later reissued in 2000.
Many ticket-holders couldn't get into the O2 Arena show on Tuesday night (September 19th) because they didn't bring photo ID to match their booking.
An album re-release, a new song and a documentary mark the singer's legacy this year.
The actor plays the titular hero in the forthcoming adaptation.