Kelly Rowland and Tulisa Contostavlos in backstage bust up over clothing budgets!

X Factor 2011 judges

New X Factor judges Kelly Rowland and Tulisa Contostavlos may be putting on a nice face in front of the cameras, but according to the show's inside sources the pair are 'at war' backstage. The split between the female judges comes as it's revealed Tulisa has been given a £70,000 clothing budget - almost twice as much as Kelly's.

We reportedly last week how Tulis was being given a £70,000 X Factor makeover in order to stop hr looking like a chav. A source said at the time: "They put aside so much for Tulisa because you don’t get a second chance to make a first impression. They want her to be the new nation’s sweetheart. She looked too chavvy and cheap on the first-day auditions so producers gave her a bigger budget for clothes and styling."

However her fellow judge Kelly Rowland is said to be annoyed with her £40,000 allowance for clothes leaving the pair in a bitter war over clothing budgets.

"Even though they're having a laugh about it to each other’s faces, behind closed doors there's a proper style war going on," a source blabs.

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The insider continued: "Kelly was turning up to auditions really dressed up, but Tulisa was going for the casual look. But TV producers weren't happy so they asked Kelly to tone it down and told Tulisa to dress up more so their outfits would look good next to each other.

"Now things have become very heated. Since Tulisa has been given a bigger budget, Kelly is having to work extra hard. Her team obviously think this is unfair but they are determined to make Kelly shine regardless."

Tulisa previously joked about any style war going on between the pair, saying: "We check what colours each other has on before the day, so if she’s wearing white I’ll wear black. I’ll say: ‘I’m well winning the style war today, Kelly,’ and we’ll just laugh about it.”

The N-Dubz star added about the US singer: “She is one professional bitch. So focused. Now is her time.”

Kelly and Tulisa will join fellow X Factor judges Gary Barlow and Louis Walsh in Liverpool tomorrow for the final two days of this year's auditions.

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