The R&B legend headed to Riviera 31 bar inside the Sofitel Hotel in Beverly Hills, California to watch the weekly jazz show and surprised the audience when he left his chair to play harmonica with the musicians.

Wonder then sung a few of his own tracks, including My Cherie Amour, as well as Happy Birthday to a member of the audience. Footage obtained by shows Wonder jamming with the band and getting the audience to sing lyrics back to him.