Charli XCX delivered the ultimate “Partygirl” set at Glastonbury Festival on Friday night, bringing out Robyn for a performance of “With Every Heartbeat,” as well as Romy , from indie rock band the xx, who remixed Robyn’s iconic millennial anthem “Dancing on My Own.” Charli’s latest album, “Brat,” has launched the avant-garde pop star into a whole new stratosphere with near-unanimous critical acclaim. The record, which is a celebration of rave music balanced with moments of vulnerability, debuted at the second spot on the U.

K. albums chart after its June 7 release and has been her most commercially successful to date. Throughout the rollout of “Brat,” Charli released several remixes, including one of “360” featuring Robyn and Yung Lean and a “Von Dutch” version with Addison Rae and longtime collaborator A.

G. Cook. Her most recent remix was of “ Girl, So Confusing” featuring Lorde , the very artist who the track was rumored to be about.

On the track, Charli conveys her complicated feelings about a fellow female singer, singing: “People say we’re alike / They say we’ve got the same hair/ We talk about making music/ But I don’t know if it’s honest.” On the remix, Lorde responds, “Well honestly I was speechless when I woke up to your voice note / You told me how you’ve been feeling / Let’s work it out on the remix.” Charli has been promoting “Brat” through DJ sets, branded as “Partygirl” shows, as well as live perfor.