In addition to backing up popular singers, they also were featured vocalists for bandleaders like Spike Jones and their solo work is part of many Disney films including Alice in Wonderland, Peter Pan, Lady and the Tramp and The Jungle Book as well as numerous animated shorts, including Trick or Treat (1952), Pigs Is Pigs (1954), Paul Bunyan (1958), and Noah's Ark (1959).
Henry Calvin, who portrayed Sergeant Garcia on that television series, also sang and released a version of the "Zorro" theme song.
The quartet also appeared in a 1959 episode of the television situation comedy Love and Marriage[2] and performed singing voices for the elephants along with J. Pat O'Malley in the 1967 movie The Jungle Book.
Elvis wanted the Jordanaires to perform for the film but they were unavailable, so the Mellomen were called in to sing "One Broken Heart For Sale" and "Cotton Candy Land".
The Mellomen later backed up Elvis on the title song for the film Roustabout as well as on most of the sound track for Paradise, Hawaiian Style.