Tulisa's tight-fitting body-con number is from Celeb Boutique and costs £109.99.
The style of the 'Rosie' bandage dress flatters Tulisa's figure perfectly - and we love her choice of silver heels.
The X Factor always prompts a style war between the female judges, and Tulisa faces some tough competition from former Pussycat Doll Nicole Scherzinger.
We can't wait to see what she wears next!
Read more: See what the other judges wore
Read more: Jessica Alba and Nicole Scherzinger: who wore white best?