Wonder recorded this song impromptu at Electric Lady Studios in New York City, which he would keep booked when he was in the area. His band at the time included Ray Parker Jr. on guitar, Scott Edwards on bass, Keith Copeland on drums, and Steve Madaio, Trevor Lawrence and David Sanborn on horns. In a Songfacts interview, Edwards said
: "He had been working with the structure by himself. But once he had all of us together, he just started playing it. And then we all joined in and we all could feel that the vibe and the way the tune was going, it was a hit. He was so excited, he said, 'Tonight we're going to the studio and record it.' And that's what we did."
Wonder played many of his own instruments on Talking Book
, but the album was one of the first to include musician credits, so we know who made it to wax on this track. The personnel were Edwards on bass, Daniel Ben Zebulon on congas, and Wonder on Fender Rhodes electric piano and drums. The male vocalist who first sings on the track is Jim Gilstrap, and the female singer who follows is Lani Groves - both were backup singers in his band. Stevie is the third singer heard on the track.