Ahmir Khalib Thompson (born January 20, 1971), known professionally as ?uestlove or Questlove (also known as BROther ?uestion, Questo, Brother Question or Qlove), is an American drummer, DJ, music journalist and record producer. He is best known as the drummer and joint frontman (with Black Thought) for the Grammy Award-winning band The Roots, serving since February 17, 2014, as the in-house band for The Tonight Show Starring Jimmy Fallon, the same role he and the band served during the entire 969-episode run of Late Night with Jimmy Fallon.

He has produced for artists including Elvis Costello, Common, D'Angelo, Jill Scott, Erykah Badu, Bilal, Jay-Z, Nikka Costa and more recently, Al Green, Amy Winehouse and John Legend. He is a member of the production teams the Soulquarians, The Randy Watson Experience, The Soultronics and The Grand Wizzards.