Rockin' With Judy Jetson

Rockin' with Judy Jetson (also known as Judy Jetson and the Rockers) is a 1988 animated made-for-television film produced by Hanna-Barbera for syndication as part of the Hanna-Barbera Superstars 10 series.

Plot
When intergalactic rock star Sky Rocker plays a concert at the Cosmic Coliseum, Judy Jetson and her friends go into orbit. Starry-eyed Judy gets to meet her idol and gives him a song which she has written just for him, "Rockin' Round the Galaxy". But also at the concert are henchmen of the evil, music-hating Felonia. They are carrying a secret code that will unlock the powers of the Mental Flosser and enable Felonia to control the universe and banish music forever!

The secret code accidentally gets switched with Judy's song, and Sky unwittingly turns it into a new rock hit. A depressed Judy takes refuge at the Crater Club, where her dad George Jetson, disguised as a punk-rocker, tries to save her from Sky. But Sky has already been kidnapped by Felonia, and then Judy disappears. Her captors, however, are the Zoomies, an outer-space race of party animals who love music and desires of vanquishing Felonia.

Felonia finds Judy and prepares to do away with her and Sky. They escape, but it may be too late. Felonia has already activated the Mental Flosser. Then Judy and Sky hit on the solution that will stop Felonia – music! They jam on Judy's song and send the beat vibrating around the galaxy. The sound overpowers the Mental Flosser and vanquishes Felonia. With the galaxy now safe, Sky resumes his tour, but as his alter ego Billy Booster, with Judy as his new opening act.

Cast

 * Janet Waldo as Judy Jetson
 * Mel Blanc as Cosmo Spacely
 * Daws Butler as Elroy Jetson
 * Don Messick as Astro the Space Mutt
 * George O'Hanlon as George Jetson
 * Penny Singleton as Jane Jetson
 * Jean Vander Pyl as Rosie
 * Charlie Adler as Quark and Zappy
 * Michael Bell as Quasar
 * P.L. Brown as High Loopy Zoomy
 * Steve Bulen as Additional Voices
 * Ruth Buzzi as Felonia Funk
 * Hamilton Camp as Mr. Microchips and Manny
 * Selette Cole as Rhoda Starlet
 * Peter Cullen as Gruff, Commander Comsat and Bouncer
 * Pat Fraley as Zilchy
 * Cindy McGee as Iona
 * Pat Musick as Starr, Fan Club President and Zowie
 * Rob Paulsen as Sky Rocker/Billy Booster and Zany
 * Eric Suter as Nicky
 * B.J. Ward as Zippy and Judy Jetson (singing voice)
 * Beau Weaver as Ramm and Dee-Jay