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,

Which makes it all the more surprising to hear that Earth Wind & Fire’s surprise guest appearance during Sabrina Carpenter’s Lollapalooza set in Chicago on Sunday (3 August) was worked out at the last minute. In fact, the '70s soul/ disco legends had just 24 hours to prepare.