Harry Belafonte (born Harold George Bellanfanti Jr.; March 1, 1927) is an American singer, songwriter, actor, and social activist. One of the most successful Jamaican-American pop stars in history, he was dubbed the "King of Calypso" for popularizing the Caribbean musical style (originating in Trinidad & Tobago) with an international audience in the 1950s. His breakthrough album Calypso (1956) is the first million-selling LP by a single artist. Belafonte is perhaps best known for singing "The Banana Boat Song", with its signature lyric "Day-O".