Simon Cowell will make a "surprise" announcement about the US version of The X Factor within weeks, the TV mogul has said.
The X Factor boss would not reveal the identity of the judges to ex-girlfriend Terri Seymour, who is a correspondent on US show Extra.
But he told her: "I'm going to make an announcement within three or four weeks, which is going to tell everyone everything. There will be some surprises."
Simon refused to elaborate, but then hinted: "OK, one of the judges has quite long hair."
The former American Idol judge also responded to executive producer Nigel Lythgoe's comments to the New York Post that American Idol, and not X Factor, which debuts next year, will always be the top show.
"It's childish, it's disrespectful," Simon said. "I think bearing in mind what we achieved together, I wouldn't have liked it if anyone else said the same thing."
Simon is said to be in the process of signing Pussycat Dolls' Nicole Scherzinger as one of his judges and is battling with the Fox TV network to get Cheryl Cole on board, even though she is virtually unknown in the US.