Simon Cowell: Britney Spears Is "Not Unstable"
The X Factor USA boss has hit back at rumours stating she's not coping...
Britney's reps previously slammed the "pathetic" rumours which first appeared in US Weekly, where the 30-year old was accused of being "extremely nervous and anxious."
An insider added to the publication: "X Factor may lead her back into meltdown territory. This is a lot of change at once for Britney. She's coming undone."
A spokesperson for Spears later told Louis Walsh - who stood in for Cowell at the Kansas City auditions earlier this week after the music mogul was struck with bronchitis - also recently told the press that he "loved" Britney on the show, adding: "She is such a star. She's really bright, really brilliant, she has it totally sussed."