Eleven finalists, including two from the North West, will fight it out on ITV1's Superstar to win the lead role in the new production of Jesus Christ Superstar.
Actor David Hunter, 27, from Warrington, had his first taste of fame with his band Reemer who toured the UK with McFly before a stint in the West End with James Corden in One Man, Two Guvnors.
He said playing Jesus would be "a chance to play the leading man" after years as the understudy.
Rory Taylor, 24, from Wirral, says his love of music comes from listening to tapes of Elton John and Queen in his parents' car.
He said appearing on the show has already been "life-changing", adding: "I've had the chance to meet some of my idols, work with an amazing music team and make some great friends."
Lord Andrew Lloyd Webber is searching for an actor to play the lead role in his rock opera, Jesus Christ Superstar.
The other finalists are Ben Forster, 31, from Sunderland, Dirk Johnston, 24, from Scotland, Jeff Anderson, 21, from Newtownards, Northern Ireland, Nathan James, 23, from Reading, Niall Sheehy, 31, from Bray, Co Wicklow, Ireland, Afnan Iftikhar, 23, from North Shields, Roger Wright, 41, from east London, Tim Prottey-Jones, 32, from Birmingham, and Jon Moses, 28, from Newcastle.