Simon Cowell has come in for a ribbing from his fellow judges after he sang on US X Factor.
The 53-year-old music mogul - famous for telling other people they can't sing - impersonated a contestant at the Denver auditions of the TV talent show, singing Elvis Presley's Can't Help Falling In Love.
A trailer for the show reveals Demi Lovato telling the hopeful, who sings in a very slow, deep voice: "You would sound like what Simon sounds like when he'd sing."
Demi and fellow judge Kelly Rowland then goad Simon into singing, cheered on by the crowd. The clip then cuts to the panel and the crowd's reaction to Simon's voice, and he declares: "That will never be aired."
But the sound of Simon's singing will be revealed when the second episode of the series airs on TV.
The trailer shows an embarrassed looking Simon backstage insisting: "Can I just be clear, I didn't sing, I impersonated a singer. That is not singing."
Demi teased: "I think it's charming, but he wants to be modest about his incredible vocal."
And Kelly added: "I knew that voice was always there."
As Simon leaves the auditions and gets into his car he tells the camera: "That was the worse night I've ever done."