Mason Wesley Bates (born January 23, 1977) is a Grammy award-winning American composer of symphonic music and DJ of electronic dance music. He is the first composer-in-residence of the Kennedy Center for the Performing Arts, and he has also been in residence with Chicago Symphony Orchestra, the San Francisco Symphony, the Pittsburgh Symphony, and the California Symphony. In addition to his notable works Mothership, Anthology of Fantastic Zoology, and The (R)evolution of Steve Jobs, he composed the score to Gus Van Sant’s film The Sea of Trees. In a 2018 survey of American orchestras, he was rated the second-most performed living composer.