He is a 1994 inductee into the Rock and Roll Hall of Fame, an author and a Grammy winner, who is best known as one of the two drummers with rock's original jam band. He is also a renown ethno-musicologist, recognized for his work with the Library of Congress, the Smithsonian Institute, and even NASA. Can you guess who he is from this yearbook photo?

Although our mystery rocker is Brooklyn born and Long Island raised, he first gained fame with one of the best known bands to emerge from the San Francisco psychedelic music scene of the 1960s. Following that band's demise in 1995, he chose to focus on exotic percussion and world music during his subsequent solo career, and continues to stretch musical boundaries.

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