William Alexander "Sonny" Greer was an American jazz drummer and vocalist, best known for his work with Duke Ellington.

Jazz drumming is the art of playing percussion in jazz styles ranging from 1910s-style Dixieland jazz to 1970s-era jazz fusion and 1980s-era Latin jazz. The techniques and instrumentation of this type of performance have evolved over several periods, influenced by jazz at large and the individual drummers within it. Stylistically, this aspect of performance was shaped by its starting place, New Orleans, as well as numerous other regions of the world, including other parts of the United States, the Caribbean, and Africa.