When we heard north London wonderkid of Fancy fame Charlie XCX was in town, we jumped at the chance for her to take the ASOS outfit challenge, and the Iggy Azalea and Icona Pop collaborator was more than happy to oblige. If you can't get enough of Charli, you're in luck, as her single, Boom Clap is out tomorrow, and it's perfect heatwave listening.

Styling: Jo Greasley

Wanna see another outfit challenge? See how NY singer Mapei got on.