"Rock Your Baby" by George McCrea, from 1974's Single Rock Your Baby.
The entire song's driving, progressive under-beat (?) is remarkably under-rated.
Wiki:
"Rock Your Baby" influenced John Lennon's "Whatever Gets You thru the Night", released a few months later; in a 1975 interview, Lennon said of "Rock Your Baby" that "I'd give my eyetooth to have written that."