Tokion celebrates the 50th Anniversary of the Jamaican soundsystem with the Sound Clash project. The project explores how the early Jamaican sound systems created a musical renaissance from which all elements of Hip Hop and DJ culture can directly trace their roots. The event will be MC-ed by Talib Kweli and will include U-Roy, Kool Herc, and a sound clash between two legendary soundsystems: Sir Coxsone’s Downbeat & King Jammy’s Super Sound. East River between Grand and Canal. 6pm. Free.