She's already been taken apart by Kanye West, Akon and a host of other big names after her disastrous opening VMA Awards performance on Sunday night, but now its the turn of the X Factor judges Louis Walsh and Simon Cowell.
Opening the riposte against her performance of new single "Gimme More" at the MTV Video Music Awards in Las Vegas, the music mogul says, "If I had been looking after Britney I’d have taken one look at her in rehearsals and I wouldn’t have allowed her on stage.
"It would have been worth pulling her off the bill - no matter what the cost - to save any chance she had of resurrecting her career. She wasn’t ready for that show in every possible way", he adds to the Sun. "The song wasn’t right, the image wasn’t right and she just wasn’t rehearsed. If she had turned up and given that performance at the X Factor auditions then I wouldn’t have put her through to the next round.
"The problem she has now is that she could have killed her career. It’s difficult to come back from that performance, for a while at least."
And fellow reality TV judge and music manager Louis Walsh was in agreement, commenting: "Britney wouldn’t make it through one audition of X Factor because she can’t sing live."Watch Spears performance at the VMA's here