Cooper and Gaga started filming A Star Is Born
near Palm Springs, California, following the pop star's performance at the Coachella Valley Music and Arts Festival last month. "I am so excited to star in my first movie alongside someone I'm so lucky to call my friend. I always wanted to be an actress on the big screen," Gaga posted to Instagram
, along with a photo of herself and Cooper in character. "The story of A Star is Born
is so special and I'm so grateful to Bradley for making my dream come true. Can't wait for you to meet Ally. She has her first scene in five..."