Robert 'Bob' Nelson Relf (January 10, 1937 – November 20, 2007), was an African American R&B and soul musician. Best known as half of the soul music duo Bob & Earl whose song, Harlem Shuffle was released in the US in 1963 and in the UK in 1964. It was re-released 1969 reaching No 7 in the UK charts. Relf's recording of the song "Blowing My Mind to Pieces" was written by Lou Barreto as well as being produced by Lou Barreto and Rod Bumgardner.