Depp was unsure about 'Sweeney Todd'

Johnny Depp has revealed that he was wary about appearing in the new movie adaptation of Sweeney Todd.

The actor claimed that he was scared that his voice wouldn't be up to scratch in the Tim Burton-directed film.

He told Empire: "It sounds fantastic! But can he sing? I was trying to figure that out myself.

"I mean, I knew I wasn’t tone deaf because I play music, guitar and all, but I didn’t know if I was actually going to be able to actually sing.

"I wasn’t sure. So I said to Tim Burton, ‘Let me investigate and I’ll send you something and see how you feel. And then we can talk about it.’ So I went into a friend’s studio and recorded 'My Friends' – a song from the show – and I sent him that and he liked it."