Tulisa Calls Britney Spears A "Wild Card" Choice For The X Factor USA – Audio

The N-Dubz singer speaks to Capital about the controversial appointment of her fellow music reality judge.

Tulisa Contostavlos has called the selection of Britney Spears as a judge on The X Factor USA as a "wild card".

The 'Young' singer told Capital FM that she does also still consider the singer to be one of the "biggest pop stars the world has ever seen".

When asked on her high-profile status, she agreed adding that there is still an element of risk with the appointment.

"I mean she is [one of the biggest stars] but I think it's still a wild card because she is, I don't know, a bit of a rebel," she confessed.

Britney and new judge Demi Lovato replaced Nicole Scherzinger and Paula Abdul on the US version of Simon Cowell's show earlier this year and the 'Criminal' singer's selection has caused controversy amongst many.

You can view a picture of Britney Spears at the X Factor auditions below:

Despite reports of walk-outs on set, Simon has quashed any such talk and Britney has expressed how much she is enjoying her new role.

Nicole was recently confirmed as the new permanent judge on The X Factor in the UK and alongside Tulisa, is currently auditioning contestants around the country with Gary Barlow and Louis Walsh.

You can listen to Tulisa speaking to Capital FM about Britney Spears below:

Tulisa speaks about Britney Spears on The X Factor USA

Meanwhile, Tulisa recently told Capital that a reunion with Dappy and N-Dubz will most likely be happening in 2013 after the acts have all released solo albums.