Lady Gaga, Bradley Cooper light up stage on Las Vegas Strip

Bradley Cooper showed up at Lady Gaga’s performance at Park Theater on Saturday night. He also showed up onstage for the Oscar-nominated song “Shallow” from “A Star Is Born.”

Cooper shouted, ”Hello, Vegas!“ as the crowd roared.

Gaga had clearly planned for Cooper’s appearance, telling him, “I even got you in-ears,” referring to the small monitors singers wear onstage. “I never use these,” Cooper said, smiling.

It was the first time the two have dueted on the song in a live performance. Gaga debuted the song in her production “Enigma” on opening night, Dec. 28.

Gaga is nominated for Best Actress, Cooper for Best Actor and the movie for Best Picture.

John Katsilometes’ column runs daily in the A section. His PodKats podcast can be found at reviewjournal.com/podcasts. Contact him at jkatsilometes@reviewjournal.com. Follow @johnnykats on Twitter, @JohnnyKats1 on Instagram.