Questlove's previous books include Mo' Meta Blues and Soul Train. He also teaches a class about classic albums at New York University. Ben Watts/Courtesy of the artist hide caption

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Questlove On Prince, Doo-Wop And The Food Equivalent Of The 'Mona Lisa'
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Ahmir "Questlove" Thompson (center) appears with The Roots members Frank Knuckles (left) and Tariq "Black Thought" Trotter during the first episode of The Tonight Show Starring Jimmy Fallon. Lloyd Bishop/NBC hide caption

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Questlove And The Roots: How A Hip-Hop Band Conquered Late Night
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Elvis Costello and ?uestlove of The Roots. Danny Clinch/Courtesy of the artist hide caption

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Elvis Costello And The Roots On World Cafe
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?uestlove and The Roots play backing band to Elvis Costello on the new collaborative album Wise Up Ghost. Courtesy of the artist hide caption

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?uestlove And Elvis Costello On Writing Together
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Elvis Costello and The Roots' new album, Wise Up Ghost, comes out Sept. 17. Danny Clinch/Courtesy of the artist hide caption

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Wise Up Ghost
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Ahmir "Questlove" Thompson also teaches a class at New York University called "Topics in Recorded Music: Classic Albums." Ben Watts/Courtesy of the artist hide caption

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"Let's be real. We're all geeks in this room." ?uestlove, of The Roots, addresses the EMP Pop Conference on Sunday. At this moment, the drummer, producer and DJ was demonstrating the delighted confusion he tries to instigate on the dancefloor, which is why he spent years searching for the Spanish-language version of Kool and the Gang's "Celebration." Michael Weintrob hide caption

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Founded by Ahmir "?uestlove" Thompson and Tariq "Black Thought" Trotter, The Roots have now been performing for more than two decades. The hip-hop group's latest album is undun. Chago Akii-bua/Courtesy of the artist hide caption

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The Roots Weave A Tale Of Crime And Karma
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Courtesy of the artist
Discussion: The Year In Music, 2011
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