Charli XCX and Billie Eilish playfully flirt in music video for Guess that is FILLED with women's underwear - as fans spot wild detail involving Katy Perry
Charli XCX is living her Brat summer as she shows off her thong while out in LA - ahead of Billie Eilish collaboration
Fans go wild for 'life changing' Charli XCX and Billie Eilish collaboration as they claim the 'iconic' track is 'history being made'
