Charli XCX performed her first full "Music, Fashion, Film" headline show at Lollapalooza 2026 on Friday 31 July, topping the Chicago festival bill alongside The Smashing Pumpkins. The set, her first complete concert since releasing the album last month, mixed hits from "Brat" with newer material and marked a live debut for two tracks from her "Wuthering Heights" soundtrack, underlining her growing stature as both a pop headliner and a multimedia artist.

The show opened with "Rock Music", "Yeah" and "Apple", and drew on "Brat" favourites including "Guess", "Von Dutch", "360" and "365", alongside newer songs such as "Wink Wink" and "Card Declined". During "Guess" she referenced the track's Billie Eilish-featuring video by showering the crowd with women's underwear, while "House" and "Dying For You" from the "Wuthering Heights" soundtrack were performed live for the first time, complete with a John Cale voiceover and stage rain. She wore custom looks by designers including James Walker and Jing Hé, closing the night with a full rendition of "No One Lasts Forever".