Billie Eilish & Charli XCX Share Live Debut Of 'Guess' Remix

Billie Eilish celebrated her 23rd birthday in style yesterday (18 December). She didn’t just play a headline show in a huge venue, but she was joined by a special guest who made the audience go wild.

The bury a friend singer performed at the Kia Forum in Inglewood, California, this week, and brought out Charli XCX for the live debut of the pair’s Guess remix. While both singers perform the song at their own concerts, it’s the first time they performed it together in a live setting.

Guess, released on the deluxe edition of Charli XCX’s Brat and It's the Same but There's Three More Songs So It's Not, and re-released featuring Billie Eilish on Charli’s remix album, Brat and It's Completely Different but Also Still Brat, has been a fan favourite since it’s June (and August) releases with its risqué lyrics and equally cheeky music video.

Uploading footage of the Guess remix to her Instagram, Charli XCX wished Eilish a happy birthday. The pair shared the live debut of Guess amongst brat-green coloured lighting, and the crowd went wild. Caution to those who watch the YouTube video below: the fan who filmed the performance is jumping up and down, so beware if that kind of motion isn’t for you.

Check out the live debut of the Guess remix below.

Notably, all the bras and underwear used in the Guess music video, which were plentiful, were donated to I Support The Girls, a charity that collects and distributes essential items, including bras, underwear, and menstrual hygiene products, for those in need.

The release of Guess featuring Billie Eilish follows a mammoth year for the pair, with both dropping critically acclaimed albums—Eilish with Hit Me Hard And Soft, and Charli with Brat.

Eilish is set to return to Australia next year, with her global tour finally coming Down Under. Charli XCX, meanwhile, will headline the 2025 Laneway Festival and will be joined by Clairo, beabadoobee, Remi Wolf, and many more.

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A post shared by Charli (@charli_xcx)

surprise GUESSt 💚

full performance of Charli XCX joining Billie Eilish for #HARDANDSOFTLosAngeles3! pic.twitter.com/mXkKJQOc2t

— The Kia Forum (@thekiaforum) December 18, 2024