Bradley Cooper Rocks Out on 'A Star Is Born' Set With Lady Gaga

Bradley Cooper and Lady Gaga are back to work on the set of A Star Is Born!

The 42-year-old actor and the 31-year-old musician were spotted filming at the Greek Theater on Monday (May 1) in Los Angeles.

While Gaga was seen zooming around on set on a scooter, Bradley took center stage for a performance.

Bradley grabbed a guitar and gave a performance with a backing band as he filmed a scene for the flick.

In the film, Bradley “plays Jackson Maine, a country music star who is on the brink of decline when he discovers a talented unknown named Ally (Gaga). As the two begin a passionate love affair, Jack coaxes Ally into the spotlight, catapulting her to stardom. But as Ally’s career quickly eclipses his own, Jack finds it increasingly hard to handle his fading glory,” according to Deadline.

10+ pictures inside from the set of A Star Is Born…