Britney Spears has QUIT X Factor USA, but was she pushed? *raises eyebrow*

After months of rumours and speculation, Britney Spears has QUIT X Factor USA.

Britney quits the X Factor USABritney Spears has quit the X Factor USA - perhaps before she was pushed?

Britney SpearsBritney Spears on the US X Factor. Copyright [Rex]

The story is that Britney has had enough of the show and wants to concentrate more on her music.

A source told TMZ: "Britney loves Simon, she likes Demi Lovato but her thing is music."

[Related article: Britney Spears' contestant voted off X Factor]

[Related article: Britney gets her boobs and her legs out]

Hmmm.

However, we sniff a whiff of the Cheryl Cole about this one, and reckon it is possible that Britney jumped before she was pushed.

*raises eyebrow*

Birtney and LA with the other judges Demi Lovato and Simon Cowell. Copyright: [wenn]

The news comes amidst rumours that the star was considered 'too boring' by show bosses, and that the show couldn't afford to bring her back for another season.

At $15 million, Britney was an expensive investment for the show and it was hoped her name would rake in a few more viewers.

However, for that kind of cash it's reported that Simon Cowell wanted 'crazy Britney, but he got boring Britney.'

We can only assume he was expecting her to turn up with a shaved head wielding an umbrella, so can understand the disappointment.

Her judging was also, er, judged by critics who panned her performance, saying she was dull and 'lacked presence'.

However, this is all probably coincidence and Britney just has LOADS of music to work on.

L.A Reid also left the show after this series to concentrate on his work as a record label exec meaning there are now two X Factor job vacancies.