Simon Cowell has lined up Rod Stewart, Leona Lewis and Michael Buble to sing on a charity single for victims of the earthquake in Haiti, according to U.K. press reports.

The song is being coordinated by TV mogul Cowell. The "American Idol" and "X-Factor" judge said he was asked by British Prime Minister Gordon Brown to help with the relief effort.

U.K. tabloid newspaper The Sun is reportedly helping organize the project and says it will be a cover of R.E.M.'s 1993 ballad "Everybody Hurts." The newspaper said Friday (Jan. 21) that Robbie Williams, Coldplay, Take That and Paul McCartney also have been approached.

The newspaper also said R.E.M. has agreed to waive royalties on the song and the record will be exempt from sales tax.

"I don't know who's available, but I will get a record out within seven to 10 days," Cowell said in an earlier statement, adding that the goal was to raise as much money as possible in a short period of time.

No details regarding a release date or exact line-up have yet been released.