Inside Charli XCX and Troye Sivan’s star-studded Sweat Tour afterparty in NYC: Lorde, Addison Rae and more

Charli XCX and Troye Sivan were “ b-b-bumpin’ that beat ” all night long.

Following their sold-out show at Madison Square Garden in New York City Monday night, the singers hosted a star-studded Sweat Tour afterparty at Jean’s on Lafayette.

The fête brought out a slew of their famous pals who partied the night away alongside the pop icons.

Charli, 32, changed out of the New York Post-inspired graphic tee and ruffled skirt she was wearing earlier in the evening into a vintage floral-print dress and black shades for the afterparty.

Throughout the night, she and Sivan, 29, were seen snapping selfies with their various guests, including Lorde, Nadia Alexeev and DJs Alex Chapman and Zoe Gitter.

Partygoers spotted Lorde chatting it up and laughing with Addison Rae in their own VIP section of the venue, while famed record producer Mark Ronson hung out near the DJ booth with Charli.

Inside Charli XCX and Troye Sivan’s wild NYC Sweat Tour stop: surprise guests, star-studded after party, more

Meanwhile, we hear Sivan entertained guests by busting some moves with a group of pals on the dance floor. At one point, he even popped behind the DJ booth when his song “Rush” began playing.

Other stars at the party included Andy Cohen, Emily Ratajkowski, Colin Jost, Lourdes Leon, Ben Platt, Grace Gummer, Bowen Yang, Rowan Blanchard, Marc Jacobs, Clairo and Jeremy O’Harris.

Also spotted were Chloe Sevigny and Hari Nef, who both starred in Charli’s music video for her massively successful “360” track. We said back in May that the catchy single would be “the song of the summer” – and needless to say, we nailed it, as “ brat summer ” had a full pop culture moment in 2024.

Ahead of the bash, many of the same celebs were spotted enjoying Charli and Sivan’s concert at MSG.

We bumped into actress AnnaSophia Robb in Strathberry’s suite , and spied Ella Emhoff in a custom “brat” beanie. We also saw Kyle MacLachlan and Benito Skinner sporting matching slime green caps emblazoned with the title of Charli’s hit album.

The “Twin Peaks” actor’s a Charli superfan, while Skinner’s one of her closest friends.

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During the show, Charli treated fans to a medley of “brat” tracks including “360” and “Club Classics,” along with a few earlier standouts like “Vroom Vroom,” “Track 10” and Icona Pop’s “I Love It.”

She and Sivan traded the stage every few songs, with the Aussie star showing off his choreography chops while performing hits like “Rush,” “My My My!” and “One Of Your Girls.”

Lorde, 27, also surprised the audience by hopping on stage to perform a rendition of her and Charli’s “Girl, So Confusing” remix, further putting an end to rumors of their alleged years-long feud .

The two even posed for a few pics backstage together , serving major “brat energy” in their trendy looks.

Meanwhile, Addison Rae, 23, also wowed the crowd by performing her new hit, “Diet Pepsi,” with both Charli and Sivan assisting her with background vocals.

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The TikTok starlet – chic in a white, feathery ensemble designed by Claire Sullivan and similar to what she wore to the 2024 MTV Video Music Awards – later joined Charli to let out her now-famous shriek that’s featured on A.G. Cook’s remix of “Von Dutch.”

The crowd also went crazy when actress Kelley Heyer appeared on the Jumbotron and performed her now-viral “Apple” dance.

The choreography she created – to her favorite song from Charli’s “brat” album – found massive success on TikTok and Instagram over the summer, with celebs like Gabbriette , Glen Powell , Kim Kardashian , Stephen Colbert , Brooke Shields and even Charli herself hopping on the trend.

“Thank you for everything Charli 💚🍏,” she later wrote on TikTok , sharing a clip of her hitting the moves in a black crop top and a bedazzled “brat” mini skirt.

Meanwhile, on her own Instagram account, Charli raved about performing to the sold-out crowd at MSG, writing, “Sold out the biggest f–king apple of them all.”

Charli and Sivan’s co-headlining Sweat Tour – in support of their respective albums, “brat” and “Something to Give Each Other” – continues Friday night at the Wells Fargo Center in Philadelphia, Pa.

Following upcoming stops in Boston, Chicago, Nashville, Miami, Los Angeles and more major cities, the tour is scheduled to wrap Oct. 23 at the Climate Pledge Arena in Seattle, Wash.

Additionally, Charli will be releasing a new version of her “brat” album on Oct. 11. “Brat and it’s completely different but also still brat,” she teased via Instagram earlier this month.

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