Mark McMullan has revealed his song choice for tonight's Britain's Got Talent 2019 final.
Mark is one of eleven acts competing in this evening's live show.
The singer previously wowed the judges at his audition before winning a spot in the final during last week's live shows.
For his semi-final performance, Mark impressed with a cover of You Will Be Found from the musical Dear Evan Hansen.
And his grand finale performance will be from another musical, revealing on Britain's Got More Talent he'll be singing She Used To Be Mine from Waitress.
Mark originally touched the judges in his first audition with a performance of Bring Him Home from Les Misérables.
Mark said: "Bring Him Home is a very personal song to me and my family. About six years ago my older brother took sick from a brain injury and he was left with a condition called Locked In Syndrome.
"It basically means he's trapped inside his own body and the only thing he can really do is here so music became a big comfort for him."
Speaking to the Daily Mirror newspaper, Mark revealed his hopes if he won the series.
“If I were to win the show, I would just be happy to have any type of career in music, but the cash prize would help us find a cure for Declan and also raise awareness,” he explained.
Eleven acts will compete for the £250,000 prize and place on the Royal Variety Show.
Alongside Mark, they are magic dog act Dave and Finn, the singing and dancing students from Flakefleet Primary School, magic group 4MG, comedy singer Siobhan Phillips, stand up comedian Kojo Anim, magician Ben Hart, singer Colin Thackery, magician X, stuntman Jonathan Goodwin.
They're joined by this year's wild card act, dancers Libby & Charlie.
Each act perform live for one time for judges Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams at the Hammersmith Apollo.
It will be down to the viewers to determine who is crowned the winner via phone and app votes.
Britain’s Got Talent 2019 Live Final airs 7.30pm Sunday on ITV. Britain’s Got More Talent follows on ITV2