Content overview: “Charli XCX Brings Out Chappell Roan for ‘Boom Clap’ at Los Angeles Concert”. Charli XCX surprised fans at the Kia Forum in Los Angeles on Saturday night by performing her 2014 breakout hit “Boom Clap” for the first time in years, and she wasn’t alone. Rising pop star Chappell Roan joined her on stage for a duet of the song, marking a rare nostalgic moment in Charli’s set, which typically focuses on her latest material. The collaboration brought together two of pop’s most talked-about artists, with Roan’s meteoric rise over the past year making the surprise appearance a major moment for fans.
The performance underscores Charli’s influence on a new generation of pop acts and highlights the growing crossover between their audiences. As both artists continue to dominate charts and festival lineups, this on-stage pairing signals a passing of the torch—and a reminder that even the most forward-looking artists can still celebrate the songs that made them stars. The full version stays on the original page, which this listing opens directly.