Wah Wah Watson, born Melvin Ragin, was an influential American guitarist known for his innovative use of the wah-wah pedal. He made significant contributions to the Motown sound in the 1970s as a member of the Funk Brothers, playing on hits by the likes of The Temptations and Marvin Gaye. His distinctive, effects-laden guitar style has been influential in genres ranging from funk and soul to jazz and R&B. Watson's work on Marvin Gaye's "Let's Get it On" is an exemplary showcase of his unique musical approach.