Fury as Britney bottles it after X Factor show

Britney Spears's long-awaited visit to London was branded a disaster after her diva behaviour upset fans and TV bosses.

Back home: Britney, right, arriving in New York last night

And the promoter of one of the capital's biggest club nights called her a b**** after she snubbed a planned public appearance at G-A-Y on Saturday. Michael Mitchell had to tell the angry crowd at Heaven nightclub that not only was she not performing, but she wasn't even going to take to the stage.

Writing on his Facebook page, Mitchell said: "Michael met Britney Spears and I hate that b****." The star's spokeswoman denied she was booked to perform, but a source for the club said it had been "embarrassing" for the promoters.

Not a G-A-Y day: Britney at G-A-Y on Saturday

Britney was in London for 24 hours before her album Circus is released on her 27th birthday tomorrow. She flew out at 10.30am yesterday.

Earlier on Saturday evening, she was accused of lip-synching through her appearance on The X Factor - performing her new single Womanizer - and snubbing both the contestants and judges.

She reportedly banned them from going to her room and posed for one picture with the judges in the corridor. She then admitted she hadn't watched any of the finalists, who this week performed her songs. Another big X Factor shock was Ruth Lorenzo's departure from the show, despite her being hotly tipped to make it to the final.

The 26-year-old from Spain bowed out graciously after she received the least amount of public votes.

She said: "I fought with all my heart, with everything I had."