"Believe It or Not" is a song composed by Mike Post (music) and Stephen Geyer (lyrics) and sung by American singer Joey Scarbury. It serves as the theme song for the television series The Greatest American Hero. The track was later included on Scarbury's 1981 debut album America's Greatest Hero.
The theme song became a popular hit during the run of The Greatest American Hero. "Believe It or Not" debuted in the Top 40 of the Billboard Hot 100 on June 13, 1981, eventually peaking at #2 during the weeks ending August 15–22, 1981, kept off the top spot by "Endless Love" by Diana Ross and Lionel Richie, and spending a total of 18 weeks in the Top 40. It also peaked at the #1 position on the Record World Chart.
In popular culture
Earl and Randy sing the song together while stuck in a water tower in an episode of My Name Is Earl.
The song's chorus is used as the theme song of "The Cinema Snob" web show.
The Family Guy episode title Believe it or Not, Joe's Walking on Air is a nod to the first line of the song's chorus. Peter Griffin also sings a part of the song in the episode title The Man With Two Brians.
In 2013, the song was sung repeatedly by one of serial killer Joe Carrol's cult members in the third episode of The Following, "The Poet's Fire".
On Gilmore Girls, Jackson chooses this as his campaign song and asks Hep Alien to play it at a campaign rally. Not wanting to ruin their reputation they play a rock-and-roll version of the song, soliciting the remark of "it sounds different live..."