Here’s everything you need to know about Lollapalooza — including a day-by-day look at the music festival in Chicago’s Grant Park.

Gracie Abrams brought out surprise guest Robyn, Cage the Elephant honored Ozzy Osbourne, and more highlights from the first day of the Chicago fest

In a brief hourlong set, the rapper packed in new and old jams. In addition to a platter of “Don’t Tap the Glass,” there was a big spotlight on “Chromakopia” and its verbose tracks like “Rah Tah Tah” and the fan favorite lick of “Sticky.