Charli XCX teamed up with London based accessory and garnet designer Fred Butler to collaborate on a track for her London Fashion Week show as part of the Red Bull Studio series.

The resulting track is the tropical sounding 'I'll Never Know', which you can download/stream by clicking here.

"Working with Fred has been an amazing experience; I think fashion and music are intrinsically linked so it’s an honour to be part of Fashion Week with her. We’ve worked on the soundtrack for her show, and the song that’s come out of it sounds like a tropical explosion of colour and magic." Charli XCX