Happy birthday to Larry Graham, Jr. (born August 14, 1946) is an American bass guitar player, both with the psychedelic soul/funk band Sly and the Family Stone, and as the founder and frontman of Graham Central Station. He is credited with the invention of the slapping technique, which radically expanded the tonal palette of the bass, although he himself refers to the technique as "thumpin' and pluckin'".
https://en.wikipedia.org/wiki/Larry_Graham