Harold George "Harry" Belafonte, Jr. is an American singer, songwriter, actor and social activist. One of the most successful African-American pop stars in history, he was dubbed the "King of Calypso" for popularizing the Caribbean musical style with an international audience in the 1950s. His breakthrough album Calypso is the first million selling album by a single artist. Belafonte is perhaps best known for singing "The Banana Boat Song", with its signature lyric "Day-O". He has recorded in many genres, including blues, folk, gospel, show tunes, and American standards. He has also starred in several films, most notably in Otto Preminger's hit musical Carmen Jones, 1957's Island in the Sun, and Robert Wise's Odds Against Tomorrow.
Belafonte was an early supporter of the civil rights movement in the 1950s, and one of Martin Luther King Jr.'s confidants. Throughout his career he has been an advocate for humanitarian causes, such as the anti-apartheid movement and USA for Africa. Since 1987 he has been a UNICEF Goodwill Ambassador. In recent years he has been a vocal critic of the policies of both the George W. Bush and Barack Obama administrations.