Tulisa Contostavlos disappointed festival fans after pulling out of a gig because she was too unwell following a two day party in Ibiza.

The pop star celebrated her 24th birthday with a raucous sunshine bash, guzzling £750 bottles of Grey Goose vodka with a group of male friends. The holiday was a double celebration for The X Factor star - not only was she marking her birthday, but she also recently won a court case victory against her sex tape ex Justin Edwards.

However, rather than a hangover she had a health hang-up instead - and the unwell singer was forced to cancel her appearance at the GuilFest festival in Surrey on Saturday.

Luckily, Take That tribute act Take Fat saved the day by playing their set from earlier on in the afternoon as festival organisers desperately searched for a replacement.

A festival goer tweeted: "Take Fat just saved Guilfest as Tulisa was a no show."

The singer had earlier been keeping fans up-to-date with her partying antics in Ibiza on twitter, posting a snap of herself drinking with friends onboard the plane and tweeting: "It's my birthday and I'll fly if I want to!!... Up high if I want to!"

She later posted a picture of her entourage headed out on a bar crawl, adding, "It's my birthday and I'll get crunk (sic) if I want to!"

ALSO SEE: Tulisa Shows Off Her Bikini Body As She Celebrates Her 24th Birthday Poolside In Ibiza (PICTURES)