Photo: WENN.com

X Factor judge Tulisa enraged her fans at the weekend after failing to appear for her performance at Guilfest, just days after being snapped on holiday in Ibiza.

Tulisa jetted off to the White Isle the same day she was victorious in court in the case of her sex tape, in which it was revealed that ex-boyfriend Justin Edwards was resposnsible for the video making it's way online.

The 'Young' star was then spotted partying with friends and sunbathing by the pool. However, come Saturday (july 14) and Tulisa was too ill to perform at Guilfest alongside Olly Murs and Cher Lloyd.

"We got a message saying she was unwell,” Festival organiser Tony Scott told The Sun. 

Meanwhile, fan Terry Cooper said: “It’s a disgrace. We all saw the pictures of her in Ibiza. If she’s well enough to drink she’s OK to perform.”

To see footage of Olly Murs taking a fall down a flight of stairs at Guilfest, click here.