From PBS American Experience Collection, Songs of Summer:
By Mark Anthony Neal
His wife was supposed to sing it. George McCrae’s own music career had languished in Palm Beach clubs, in what might be thought of as an upscale chitlin’ circuit. At the time, he was about to go back to school to study law enforcement. But Gwen McCrae was late to the recording session at TK Records in Hialeah, Florida. Tired of waiting, engineer Richard Finch and record store employee Harry Wayne (KC) Casey asked George to stand in. The result was “Rock Your Baby,” which topped the Billboard Hot 100 and R&B Charts in late July of 1974.
For two weeks that summer, McCrae would rule the airwaves, backed by the futuristic rhythms of an affordable drum machine and propelled by two songwriters who would help define the sound of dance music throughout the 1970s and beyond.
To be sure, “Rock Your Baby” was not the first disco hit to top the pop charts. That distinction probably goes to the Hues Corporation and their song “Rock the Boat.” But there was something about McCrae’s “Rock Your Baby” that smacked of the new — namely, the Roland TR 77, an early-generation drum machine and harbinger of the future. Good dance music means the beat stays in the pocket; now anybody could catch the beat, paving the way for disco to democratize the dance floor.