Fox is negotiating a deal for Celebrity Idol, a spin-off of American Idol, reports Variety.

Mike Darnell of Fox explained that the show would be broadcast as ten instalments over a two or three week period, featuring ten celebrities competing to win $1m for their chosen charity.

No names are yet slated to appear, though Darnall revealed: "We're going to go for the biggest talent possible. We're looking for people who can sing but aren't known for singing."

The contestants will be voted off one by one by the public, the judges having no say as to who stays and who goes.