Any Dream Will Do producers have instructed the remaining contestants to spend time at the gym if they want to win the role of Joseph.

Theatre composer Andrew Lloyd Webber has already told viewers to vote for a Joseph with sex appeal, and he is currently worried that many of the finalists aren't buff enough.

"Ideally we want that swoon effect when he hits the stage," judge Denise Van Outen admitted. "Yeah it can happen but I think a few of them will have to hit the gym first."

A source told the Daily Star Sunday: "The finalists have really impressed the judges and bosses with their vocal performances. But a lot are too baby-faced and skinny to pull off the role of Joseph."