|From the episode:||The Man with Two Brians|
"Believe It or Not" is the theme song to the television show The Greatest American Hero and was composed by Mike Post (music) and Stephen Geyer (lyrics) and sung by Joey Scarbury.
The full lyric, "Believe it or not, I'm walking on air", is the basis for the title of the episode "Believe It or Not, Joe's Walking on Air".
Believe it or not,
I'm walkin' on air,
I never thought I could be so free;
Flyin' away on a wing and a pray'r,
Who could it be? (could it be)
Believe it or not, it's...