One of the most memorable moments of this year's Lollapalooza - Earth, Wind & Fire joining Sabrina Carpenter as a surprise guest - came together in less than 24 hours, according to member Philip Bailey.

The R&B and disco band teamed up with Carpenter for a two-song set of "Let's Groove" and "September" on Sunday, Aug. 3NEED TO KNOWEarth, Wind & Fire opened up about turning the group’s surprise performance with Sabrina Carpenter around in “24 hours”In an interview with Vulture on Tuesday,

It was very quick and kind of sketchy,” says Philip Bailey of their Lollapalooza surprise. “I was almost concerned about it.”