Harry Styles has had a busy few days, what with releasing his first solo single, possibly being godfather to Liam Payne and Cheryl's new baby and all that talking in an American accent.

But he's not stopping there, as Harry also took the time to drop by Dermot O'Leary's BBC Radio 2's Saturday Breakfast Show yesterday (April 8), where he revealed that working on Christopher Nolan's epic Dunkirk was one of the biggest challenges he's faced so far.

"It was one of the best experiences of my life," he said of working on the film. "Honestly it was amazing, it was a real challenge.

"I think the movie's going to be great. I think [Christopher Nolan's] amazing. It was pretty amazing to be involved in the whole project."

And after Dermot congratulated Harry on fighting for the role, he added: "I mean, I really loved being the new guy.

"I loved kind of being so far out of my comfort zone. It felt really good to kind of have no idea what I was doing for a little bit."

Warner Bros.

Much has already been made of the singer's acting debut with his co-star Mark Rylance praising him as remarkable.

"Harry was absolutely right for the role," the film's casting director also said last year. "We thought he was fresh and interesting and he won the role.

"[He] really had to overcome hurdles to get past that. He fought hard for it and his work was impressive and that's what attracted us to him."

Warner Bros.

Fortunately, we don't have to long to wait to see how true those comments are as Dunkirk's incredible true story arrives on the big screen on July 21, 2017 in the US and UK.

Harry's visit to Dermot's radio show comes as he embarks on his long-awaited solo career – listen to his new single 'Sign of the Times' below:

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