Kim Theory, a pop-punk quartet composed of Los Angeles teenagers, will perform their Lollapalooza debut on July 30. The band—featuring vocalist Audrey Cymone, drummer Zoey Su, guitarist Lula Seifert, and bassist Lucy Fraser—has released two EPs and performs a blend of punk energy with melodic 1990s alternative influences. The four high school juniors, whose band name honours three pioneering female musicians, plan to showcase songs from their releases alongside covers during their festival set.

Originally formed through childhood garage collaborations, Kim Theory has expanded beyond their informal origins to secure professional representation and book performances at a major festival. Following their daytime Lollapalooza slot, the band will open an evening aftershow for actor Finn Wolfhard's band—a significant booking opportunity considering the members' ages would typically exclude them from the venue's 17+ policy. The musicians have approached their rising profile modestly, keeping their festival participation confidential within their school communities.