US President Barack Obama shot to pseudo-stardom when he broke into song while delivering an eulogy at a funeral in June.

Now, his singing talents will grace a much bigger stage.

British rock band Coldplay is set to feature a sample of Mr Obama crooning the gospel anthem Amazing Grace on its upcoming seventh album, A Head Full Of Dreams.

"We have a tiny clip of the President singing Amazing Grace at that church," Coldplay frontman and lead vocalist Chris Martin told The Sun.

"Because of the historical significance of what he did and also that song being about, 'I'm lost but now I'm found'."

Mr Obama was delivering the eulogy in honour of South Carolina State Senator Clementa Pickne - who was slain in a mass shooting the week before - on June 26 when he unexpectedly decided to showcase his vocal chops.

A YouTube video of the occasion has since attracted more than 2.7 million views.

Amazing Grace is a Christian hymn first published in 1779. It was written by English poet John Newton, who drew inspiration from his own experiences.

According to People magazine, the White House has no issues with the band repurposing Mr Obama's impromptu performance for their album.

Martin also revealed that he had met Mr Obama - a self-professed Coldplay fan - in 2012, when the President revealed that he had the band's songs on his iPod.

"I can't get my head around the notion that the president of the USA would have any of my songs on his playlist. It is just too surreal," Martin reportedly said.