While "Epp Opp Ork Ah Ah" gets all the attention from The Jetsons' lone season in primetime, it wasn't the only song played on the show.
In the episode, "Miss Solar System", Jane (Penny Singleton) goes undercover, suspicious of George (George O'Hanlon) being assigned by his boss, Cosmo Spacely (Mel Blanc), to be a judge at the Miss Solar System beauty pageant. So Jane becomes Miss Western Hemisphere, and while we're not sure that is also Penny doing the singing, Jane wows 'em with "Won't You Fly Home, Bill Spacely?", a parody of "Won't You Come Home, Bill Bailey?". You've probably seen an excerpt of this track used in a Boomerang house ad to promote The Jetsons.
As you can probably tell, the plot was lifted from any number of I Love Lucy episodes where Lucy was trying to cut in on Ricky's act at the Copa. Somehow, this made the big reveal that much more predictable.