Overview
- Sombr brought 5 Seconds of Summer onstage during his Lollapalooza set, which took place on Thursday, July 30, 2026, and the acts performed 5SOS’s 2014 hit “She Looks So Perfect.”
- Sombr introduced the band with a loud onstage shout-out and performed with 5SOS members backing his song “Back to Friends” before sharing vocals on the hit single.
- Video clips and posts from both artists’ Instagram Stories circulated after the show, with Sombr and 5SOS both calling the night “f–king crazy” or “f–king epic,” helping the moment go viral.
- The cameo follows 5SOS’s own main-stage set at Lolla, where the band also covered Katy Perry’s “Teenage Dream,” and 5SOS is scheduled to host an official after-show at The Salt Shed on Aug. 1.
- For Sombr, the Lollapalooza appearance furthers a fast-rising profile built on recent singles and festival shows and feeds into his planned fall North American tour that closes at Madison Square Garden on Nov. 23.