Judy Jetson and her friends idolize rock star Sky Rocker and attend his concert, despite George Jetson's disapproval of rock concerts. Judy had just written a new song and wanted to give it to Sky. Meanwhile, evil space queen Felonia Funk is out to destroy music and send her cronies, Quark and Quasar, to give Commander Comsat a message containing a code that will help Felonia find a rare crystal that will assist her evil doings. Sky Rocker gets the wrong sound and it became a huge sensation, leading to Felonia's kidnapping of Sky Rocker and a music group of music much-loved aliens, the Zoomies, to help Judy. Meanwhile, Elroy and Astro pursue Judy as she is chased by space villains and George goes to find his daughter.