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This week the X Factor judges continued their fashion fight with some very unexpected choices. On Saturday night, Kelly Rowland eschewed her usual high end numbers in favour of a leather mini dress from good old Topshop! It's not available online at the moment - something tells me Kelly got exclusive early access to it. Meanwhile, Tulisa Contostavlos went for full-length glamour in a Herve Leger gown with chain detail.

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For the result show the following night, Kelly called upon one of her favourite London-based design teams, Falguni and Shane Peacock. Her structured bodysuit with long chiffon overlay was a really dramatic choice. Meanwhile Tulisa went for a bit of sparkle, courtesy of Dolce & Gabbana. Wearing this dress caused problems with her now infamous 'salute', designed to show off 'The Female Boss' she has tattoo'd on her arm. The long sleeves hid the ink, so she skipped the move for once.

Tulisa's metallic pailette dress is currently on sale at Net a Porter for £1660.