Twennynine

Twennynine is the name of a music group formed in 1979. The group featured jazz fusion drummer Lenny White with Lynn Davis (vocals), Carla Vaughn (vocals), Joycelyn Smith (vocals), Skip Anderson (keyboards), Barry Johnson (bass), and Eddie Martinez (guitar). Their best-known song, "Peanut Butter," peaked at #83 in February 1980.

...
Wikipedia