I t is so! During her headlining Lollapalooza set on Friday night, Olivia Rodrigo kept the rock surprise guest streak going by bringing out Weezer to sing “Say It Ain’t So” and “Buddy Holly” — and for some extremely online people in the crowd,

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.