The xx rework 'Newsnight' theme tune
Scroll down and click below to hear his version of the theme, which was originally composed by George Fenton.
Smith appeared as a guest on the programme on Tuesday night (February 15), talking to host Jeremy Paxman about the art of remixing. It is not the first time he has appeared on the show, having played on it with The xx following last year's UK general election.
Meanwhile, Smith is set to release his collaboration album with Gil Scott-Heron, 'We're New Here', on Monday (February 21).
Uncut have teamed up with Sonic Editions to curate a number of limited-edition framed iconic rock photographs, featuring the likes of Pink Floyd, Bob Dylan and The Clash. View the full collection here.