Lady Gaga is up for a Best Actress Oscar for her starring role in the movie, which was directed by Cooper.
Lady Gaga had a surprise for audience members at her Las Vegas show on Saturday night, when Bradley Cooper came out to perform their hit song “Shallow”.
The duo performed the Oscar-nominated track from the film A Star is Born during her Enigma show on 26 January.
“I know that he’s so happy that we’ve all been nominated and that the film was recognized and we all feel really, really beyond elated for the recognition.”