Bucks Fizz singer Cheryl Baker and X Factor winner Joe McElderry will sing it out in the final of ITV's Popstar to Operastar.
On Sunday night's semi-final Toploader's Joseph Washbourn and former Steps singer Claire Richards were eliminated as a result of the public vote.
After her elimination, Richards said: "I'm going to miss it; it's been so nice to be singing again.
"It's nice that the kids are going to know that I don't just stay at home and be a mummy."
Washbourn said: "I don't think my heart was going to stand any more. I've had an amazing time. I'm happy to go back to my day job for the next couple of weeks."
