 The original length of the voyage was "a six-hour ride", not "a three-hour tour".John Williams (or Johnny Williams as he was often listed in the show credits) also started out as the composer of the incidental music for the show (from 1964 to 1965), but was replaced by Gerald Fried for the remaining seasons (1965–1967).The band Little Roger and the Goosebumps recorded "Stairway to Gilligan's Island," a parody of Led Zeppelin's "Stairway to Heaven", substituting the words to the "Gilligan's Island" theme song.