Lady Gaga stopped by The Ellen DeGeneres Show today (Sept. 27) for an interview. The superstar revealed that breaking out of her role as "Ally" in A Star Is Born was difficult, and talked about co-star Bradley Cooper's success in creating a sanctuary on set.

"I literally dyed my hair blonde the night that we stopped shooting, because I wanted to get out of it as soon as possible," the 32-year-old singer admitted to host Ellen DeGeneres. "Without giving away the end of the film, there is some tremendous emotion and tragedy, and so I wanted to get her [Ally] out, but to be honest, she's still in here."

Gaga went on to explain how easy it became to trust Cooper throughout the filming process. "He just provided for such a sanctuary on set and he says it to me in the film and he said it to me in real life, 'All you have to do is trust me,' and I really felt like I could trust him every day on set, " Gaga said. "It was a totally different experience than I've ever had."

Watch the clip from Gaga's interview on Ellen below.