Friends of the 25-year-old singer have been sending love her way via Twitter with the hashtag #PrayForDemi.
The film is set to hit theaters on Oct. 5!
Cooper and Gaga's big screen collaboration has already generated plenty of awards show buzz and excitement over the film has reached a fever pitch.
Here's what the stars have been up to!
The country-rock remake of the classic film hits theaters Oct. 5, 2018
The superstar loved the high school performance by the 'Bodak Yellow' rapper.
ET sat down exclusively with the Rocket Man to talk about fatherhood, fashion and his All-Star GRAMMY salute.
Gaga was born this way! For her 32nd birthday, the singer gave fans a glimpse of the original Stefani Germanotta.
Gaga stars opposite Bradley Cooper in the same roles Streisand and Kris Kristofferson played in 1976.
During her press tour for 'Red Sparrow,' the star sported a look reminiscent of Hurley's memorable Versace safety-pin dress.
Check out Hollywood's most pampered, super-cute celebrity pets.
On Saturday, the 'Million Reasons' singer announced that due to medical reasons she had to cancel the remaining dates on her European tour.
The 31-year-old singer made the decision on the advice of her medical team.
There's always that one shocking moment.
