John Paul Larkin, known professionally as Scatman John, was an American singer-songwriter and musician. A prolific jazz pianist and vocalist for several decades, he rose to prominence during the 1990s through his fusion of scat singing and dance music. He recorded five albums, which were released between 1986 and 2002.

Originating in vocal jazz, scat singing or scatting is vocal improvisation with wordless vocables, nonsense syllables or without words at all. In scat singing, the singer improvises melodies and rhythms using the voice solely as an instrument rather than a speaking medium. This is different from vocalese, which uses recognizable lyrics that are sung to pre-existing instrumental solos.