Producers of ITV1′s reality show I’m A Celebrity are said to be panicking in case boyband heartthrob Matt Willis walks out of the camp.

A source told the Mirror: “Behind the scenes, he’s getting really annoyed and people are worried he’s going to snap.

“He’s a bit of a loose cannon so it’s a concern for producers – and there have been suggestions he might walk.

“He is a bit of an outsider because he’s the youngest in there and he simply doesn’t have too much in common with the others. He’s tired, hungry and extremely bored, but viewers haven’t been shown any footage of him getting angry yet – they might be surprised by what they see.�