Hozier has teamed up with Noel Gallagher for a charity single with a difference, thanks to a Dublin radio DJ.
Greg McQuaid, who hosts a popular breakfast show in San Francisco, convinced a host of celebs to lend their talents to raise money for a good cause.
Greg and his team at KFOG FM in California wrote a quirky song entitled Boob Spelt Backwards Is Boob' to raise money for the Breast Cancer Research Foundation, which funds research projects worldwide.
The title came from his co-host Mike Nelson's eight-year-old son.
The project began last January.
Every time a big name came through the studio, Irish Greg as he's known to listeners asked them to take part in the #Boob- project.
Despite having no melody or lyrics, the team aimed to have the song for sale by October to mark global breast cancer awareness month.
Florence And The Machine's Florence Welch was also keen to lend a hand.
Hozier and Gallagher contributed, as did 1980s legends Spandau Ballet.
"Getting Hozier was really huge. When you have one of the biggest artists on the planet involved, convincing others to contribute becomes a lot easier," Greg told the Herald.
"We recorded his part back in April. He didn't have time to come by the radio station so we recorded him at the Masonic where he was playing three sold-out shows.
"It was cute because his tour manager and road crew were all walking around backstage singing the chorus as we were trying to record it."
The song and video will be available on www.kfog.com/boobproject or it can be downloaded from iTunes. It is due to be released on Thursday.