"Theme from The Greatest American Hero (Believe It or Not)" is a song by American singer Joey Scarbury. The track was later included on Scarbury's 1981 debut album "America's Greatest Hero". A lot of pop culture history to cover here, so bear with us. "Believe It or Not" was the theme to the 1980s TV series The Greatest American Hero, and by far the biggest hit for the adult contemporary singer Joey Scarbury, who also charted with the follow-up single "When She Dances" (#49), and back in 1971 wi