Kelly and Tulisa continued their run of glamorous Kelly arrived on stage in a floor-skimming sequin embellished gown before stripping down to a crop top and hot pants for her performance. (Was it just us, or did she look a little bit awkward when she realised she had to chat to Dermot with barely any clothes on?)
Tulisa supported her fellow judge in a charcoal grey mini dress and killer heels. After seeing her rock a stunning floor length number on Saturday's show, we wish she would wear the elegant style more often.
How do you rate the ladies' latest looks? Let us know and take a look below to see more X Factor fashion.
Shop Kelly and Tulisa's sparkling style below: