Who: Cheryl Cole wearing Julien Macdonald
Shop: Julien Macdonald Tank
Net-A-Porter US $180
Net-A-Porter International £120/€147

Julien Macdonald Crystal-Embellished Stretch-Jersey Pants
Net-A-Porter International £4,255/€5,222

Where: X Factor Week 4, London

Credit: Net-A-Porter & Rex Features