Tom Hardy has admitted that he is struggling with the singing aspect of playing Sir Elton John in a new movie.

The actor has been tasked with playing the part of the musician in the upcoming biopic Rocketman.

The Brit was asked by The Sun about the vocal aspect of playing John, with Hardy replying:

"I'm not a singer. I have no idea really.

"I'm really trying because of Rocketman but it's hard to open my mouth in that way."

The flick meanwhile has been described as a "larger-than-life movie musical spectacle that tells the story of a child prodigy turned music legend".

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Watch Tom Hardy being interviewed below: