After Lollapalooza, Rodrigo wrapped her GUTS tour shows when she played Osheaga Festival in Montreal on Aug. 1 and 3. Meanwhile, Weezer will play festivals across the country in August, September and October before heading to South America in November for three shows.

The singer checked a big item off her bucket list when she played "Buddy Holly" with the band over the weekend in Chicago.

Rodrigo made her Lollapalooza debut with a powerful headlining set. Olivia Rodrigo delivered a powerful performance Friday night as she made her Lollapalooza Chicago debut, headlining Day Two of the annual music festival in Grant Park.