Whilst we prepare for a cozy night in as the new X Factor series kicks off at 8pm tonight, we must not forget to grab our sunglasses, as Tulisa’s new bright white gnashes are in town.

Move over Simon Cowell, there is a new celeb with florescent white teeth on the judging panel.

N-Dubz star Tulisa Contostavlos has undergone a massive style overhaul in the recent weeks building up to the UK X Factor. The

Hip-Hop star has ditched her chava tracksuit and gold gangster bling in favour of a sophisticated Cheryl Cole look.

She may hate being compared to her predecessor, but with the glossy chocolate brown locks softly falling on one side, sultry dark smoky eyes and glamorous tight dresses, you have to look twice to remember which lady is actually sitting in the chair.

Now in the honour of music mogul Simon, who sadly has dumped us for the bright lights of the US, Tulisa has forked out a staggering £12,000 to have her her pearly whites turned – well… pearly white.

The British singer, 23, have shelled out mega bucks to ensure she has the perfect smile in time for the bootcamp auditions, that are due to air on ITV in just a few hours.

“Tulisa has not got bad teeth by any stretch of the imagination – she’s hardly Austin Powers,” a source said.

“But since she’s been famous she’s been aware they are not perfectly aligned, so she decided to pay for a it of help.”

One things for sure – we’ll be tuning in to check out the Tulisa’s new smile, oh and of course the bout of talent due to empty there lungs at the auditions.