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Ahmir "Questlove" Thompson
With his distinctive look -- over six feet and 300 pounds, with thick, black-rimmed glasses, a full beard and a hairstyle untamed by the Afro-Pick he habitually kept stuck in it -- Ahmir "Questlove" Thompson became one of the most immediately recognizable figures in hip-hop, working as the drummer and musical director of The Roots. When The Roots became the house band on "Late Night With Jimmy Fallon," Questlove found a new audience for his cool yet cerebral style, which only expanded when Fallon and The Roots took over "The Tonight Show Starring Jimmy Fallon" (NBC 2014- ).