Us President Barack Obama is all set to features on Coldplay's new song.
Obama's decision to let the British rockers feature him on the track has been a surprising one.
The recording comes from Obama singing at the funeral of Charleston shooting victim Clementa C Pinckney earlier this year (15).
"We have a tiny clip of the president singing Amazing Grace at that church," Martin said, according to The Sun online.
"Because of the historical significance of what he did and also that that song being about, 'I'm lost but now I'm found'," he added.
The White House granted special permission for the clip to be used on the single "A Head Full of Dreams", which is due out later this week.
