Pop-opera duo Jonathan and Charlotte have admitted they were ready to split up and go it alone when they first appeared on Britain's Got Talent.
The pair, who are hot favourites to win the live final, resisted Simon Cowell's attempt to make Jonathan a solo act after their first audition.
But Charlotte said: "We had a conversation before and we were kind of like 'If they ask one of us to leave the duo how would we deal with it?'"
The teenager from Ilford, east London, said: "If they give you the choice and it is your actual choice, then OK, then stay together, but if it's kind of on your own or nothing then go, because why would you miss an opportunity like that?".
The pair are 4/5 on with bookmakers William Hill to win the ITV1 talent show with dancing dog Pudsey and partner Ashleigh second favourites.
Also in the final are synchronised swimmers Aquabatique, Welsh choir Only Boys Aloud, Irish singer Ryan O'Shaughnessy and boy band Loveable Rogues.
They will compete against singer Sam Kelly, Welsh dance group Nu Sxool, ballroom dancers Kai and Natalia, and 11-year-old singer Molly Rainford.
The line-up will be completed when the judging panel reveal which losing act has been given a wild card place.
The winner will perform at the Royal Variety Performance and receive a cheque for £500,000.