New X Factor 'tough and dangerous'

New X Factor judge Tulisa Contostavlos has promised that this year's competition was going to be "dangerous".

The N-Dubz star was backstage at the Wireless Festival in London's Hyde Park at the weekend on a break from auditioning aspiring pop stars with Louis Walsh and fellow new panellists Gary Barlow and Kelly Rowland.

Contostavlos revealed, when asked how the X Factor auditions were going: "Really good. There's going to be some tough competition this year. It's going to be dangerous."

The 22-year-old hip-hop star was at the festival to see headliners Chemical Brothers and said she was expecting some "rockin' beats".

Earlier in the day Cannibal singer Kesha had stunned the crowd with her gory show which saw her appear to devour limbs and a blood-filled heart on stage, in front of a dancer on a crucifix.