Nat Riddles (4 February 1952 – 11 August 1991) was a blues harmonica player who played an important role in the New York blues scene during the late 1970s to mid-1980s. Born in Bronxville, a Westchester County suburb of New York, he was educated at Brooklyn College and the Pratt Institute. In the early 1980s, he became known in New York blues circles for his street performances with guitarist Charlie Hilbert as part of a free-form duo that he labeled 'El Cafe Street.'
"Cross My Heart" is a song by the late blues harp player Nat Riddles, released on the record "New York Really Has the Blues, Vol. 4" in 1983 on the Spivey label (Spivey LP 1035).