Clarence Smith (June 11, 1904 – March 15, 1929), better known as Pinetop Smith or Pine Top Smith,[1] was an American boogie-woogie style blues pianist. His hit tune "Pine Top's Boogie Woogie" featured rhythmic "breaks" that were an essential ingredient of ragtime music, but also a fundamental foreshadowing of rock & roll.[2] The song was also the first known use of the term "boogie woogie" on a record, and cemented that term as the moniker for the genre. Source : Wikipedia