In the history of unexpected collaborations, this was up there with Axl'n'Elton at the Freddie Mercury Tribute Concert; David Bowie and Bing Crosby and The KLF with Tammy Wynette.

Yesterday, popstrel Charlotte Church joined The Klaxons in an impromptu version of the band's new single Twin Flames. Both acts were appearing on BBC 5 Live's Richard Bacon show.

Although she and the The Klaxons had barely any time for a rehearsal - cramming in a news break - the performance was on the money. Take a look for yourself:

Church released her new album, Back To Scratch, this week.

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