Tulisa Contostavlos - Tulisa Contostavlos' Rep Slams Fake Sex Tape Seller

A conman is trying to sell the explicit footage for $800,000 (£500,000), but the N-Dubz star's publicist has dismissed the move as a tactic to make money, because of Contostavlos' new-found fame as a judge on Britain's The X Factor.

And the spokesperson insists the brunette has never been involved in a recorded romp.

The rep tells Britain's The Sun, "This tape is 100 per cent fake and is just someone trying to cash in on her X Factor role.

"She is horrified that someone would go to the extreme lengths of fabricating a video. It is absolutely not her. Tulisa has categorically never allowed anyone to film her having sex."