Music mogul Simon Cowell has been slammed by a fellow judge on UK TV show The X Factor for having bigger breasts than Sharon Osbourne.

Irish pop svengali Louis Walsh, who judges wannabes on the reality show alongside Cowell and Osbourne, was quick to notice the 45-year-old had put on weight when the trio recently filmed The X Factor's second series.

Walsh jokes, "He is looking like Engelbert Humperdinck. He now has bigger t*ts than Sharon."

The X Factor starts on UK network ITV1 tomorrow night (20AUG05).