Further proof that Bradley Cooper is one cool new dad ... and that he might have a second career in music.
The Limitless star, who recently welcomed his first child with partner Irina Shayk, transformed into a total rockstar as he hit the stage at the Glastonbury Festival Friday in Somerset, U.K. showing off his guitar skills as he did a bit of headbanging in a black button-down top and jeans.
Rocking a shaggy beard and a bob-length haircut, Cooper strummed his guitar and sang for the massive crowd with passion —a huge deal, considering Glastonbury is one of the largest music fests in the world. Once the blue-eyed thesp finished up, he threw up his hands and thanked the audience with a smile before he left the stage.
WATCH: Bradley Cooper's Changing Looks
It looks like working alongside Lady Gaga for their upcoming film A Star Is Born is paying off. In a shot from the film Mother Monster shared with fans on Instagram in April, Cooper can be seen rocking the same shaggy beard and hairstyle as he plays a guitar while Gaga croons into a microphone on stage.
The film is set to hit theaters in 2018.