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

In another collaboration we didn’t see coming - she brought out Duran Duran last month for a performance of Hungry Like The Wolf in London’s Hyde Park - Sabrina Carpenter invited funk and soul legends Earth,

The veteran R&B act ran through two of their most iconic hits with the "Espresso" singer on Sunday night (Aug. 3) in Chicago.