The A-list performers at London's Live 8 concert have had their voices fine-tuned for the upcoming DVD detailing last month's (02JUL05) historic event.

Technicians have employed computer programme Auto-Tune to refine the performances of artists including Bono, Sir Paul McCartney and MADONNA - prompting some critics to claim the DVD sound recording is faked.

A source says, "It's Botox for the vocally challenged. By cutting up and reassembling notes it can erase the wrinkles and bum notes and make a karaoke drunk sound like Frank Sinatra."