Well, as far as I’m aware, SF doesn’t multitrack – so if your desire is for a harmony vocal jingle I guess you’re a bit stuck!
Can you sing? Sorry, that’s a rude question.
If it’s the singing that’s rubbish, you could always try a shout or a chant – the advantages of which a several. Faster, less precise and you can pull-in all your mates and their girlfriends to do it/them.
You’ll need a multitrack facility with headphone monitoring for each participant.
You’ll want to stack the phrase 4 ways using a minimum of 3 “shouters” who will need to be able to keep in time during the takes.
Take 1: Sound butch
Take 2: Stand back from the mic and . . . Shout!
Take 3: Sound surprised
Take 4: Sound excited
That will fill-out your sound and provide impact.
If you want to do it musically it’s far more complex and the result depends largely on the talent you employ to do the job.
Even the most basic, cheapest studio would be able to do this, recording and mixing it/them down within an hour, or 2 max.
Does that help in any way?
-Sean