Keira Knightley has said she loved working with Adam Levine on his first film, Begin Again, because he was such a natural.
The Pirates Of The Caribbean actress stars with Maroon 5 frontman Adam in the film about a dejected music exec and a young singer songwriter who has just moved to New York.
She told OK!: "I broke him in, that's right. I'd actually seen him live and that energy makes an experience. He's a born entertainer, so I wasn't worried about him expressing himself."
Asked if she gave Adam any acting tips, Keira replied: "He didn't need any. He's a natural actor and a very lovely man to work with, so it was a lot of fun."
The Jack Ryan star added that she had not been as much of a natural at playing a musician, saying: "[Adam] tried to teach me how to play the guitar - he failed. I didn't smash it over his head, I'm proud of myself... I'm not a singer or a musician, so I had to fake it."
Asked if she would keep up the singing, she said: "Nope, I'm fine. It was fun, but I think I'm bad."
Begin Again is due out in cinemas on July 11.