And they're joined onstage by Ash...

COLDPLAY covered native band SIGUR ROS’ ‘SVEFN – G – ENGLAR’ during their Icelandic Christmas concert.

The band’s frontman Chris Martin worked the track into the end of their own ‘Everything’s Not Lost’ at Laugardalshöll Sports Hall (December 19). He played piano and sang, while Ash‘s Tim Wheeler joined in at the end on guitar.

One onlooker said: “It was brilliant and the crowd went wild. Coldplay have never been better.”

Coldplay have performed a number of different cover versions on their current world tour, including Aqua’s ‘Barbie Girl’ and Nelly‘s ‘Hot In Herre’.