Well, Joe Rodger's song has more staying power, I'd say - but maybe it's time for some Goodbye songs

Good-bye-ee!
Wipe the tear, baby dear, from your eye-ee.
Though it's hard to part, I know,
I'll be tickled to death to go.
Don't cry-ee! Don't sigh-ee!
There's a silver lining in the sky-ee.
Bonsoir, old thing!
Cheerio! Chin-chin!
Nah-poo! toodle-oo! Good-bye-ee!

Only thing is, remember Terminator and "I'll be back..."