Lollapalooza 2026 opened in Chicago’s Grant Park on 30 July, with Billboard highlighting several standout performances from the first day.

– 5 Seconds of Summer revived their nostalgic rock cover of Katy Perry’s “Teenage Dream”.
– Charli xcx joined Lorde for their “Girl, So Confusing” remix, prompting a major crowd reaction.
– Chicago native John Summit headlined after rising from festival attendee to prominent DJ.
– SB19 became the first P-pop group to perform at Lollapalooza, drawing international Filipino support.