Teenage rap sensation Bars and Melody - 13-year-old Leondre Devries and his friend Charlie Lenehan, 15 - are hot favourites to win the Britain's Got Talent final.
The pair, f rom Wales and Bristol, already have the backing of show supremo Simon Cowell who pressed his golden buzzer to send them straight through from their first audition.
Bookmakers William Hill make them 6-5 favourites to win ahead of boyband Collabro who are 9-4 and singer Lucy Kay who is 8-1.
The firm's spokesman Rupert Adams said: "I t now looks a like a two horse race between Collabro and Bars and Melody.
" The final of BGT is one of the biggest reality TV nights of the year and we will take a six figure sum on the night."
Things are not looking so bright for magician Darcy Oake who revealed he has suffered sleepless nights as he prepares his act for the final.
The Canadian illusionist said he will carry out his most dangerous stunt to date in the ITV talent show tonight.
"Because what we're doing in the final is extremely dangerous, we can't exactly rehearse it before the show, so it is either going to work or it's not," he said.
"If it doesn't, it will be bad. It is literally the most dangerous thing I have ever done in my life. I am beyond worried."
He is one of 11 acts who will fight it out to win the show - and a place performing at the Royal Variety Show - on ITV1 from 7pm.