On Thursday evening, Olivia Rodrigo made her debut at Lollapalooza Chicago and was joined by Weezer to perform their tracks, "Buddy Holly" and "Say It Ain’t So".

Earlier in the weekend, headliner Olivia Rodrigo brought of Weezer during her set, playing “Say it Ain’t So” and “Buddy Holly.” The four-day festival, which began Thursday in Chicago’s Grant Park, ...