Gaga also praised 'A Star Is Born' co-star Bradley Cooper during a Thursday appearance on 'The Late Show with Stephen Colbert.'
The 32-year-old popped into a movie theater in New York City to surprise fans at an advance screening of her new movie.
Cooper makes his directorial debut with 'A Star Is Born' but ET is throwing it back to when the actor was just "rising star" status.
'I would not be here without you,' she told the crowd.
The iconic actor-director plays a drug mule in his twilight years in this upcoming crime drama.
Cooper played 'A Star is Born' at his 20-year high school reunion!
The bond between these two keeps getting better!
The actor opens up about his early career in W Magazine.
Although it's hard to believe these days, the actor wasn't always thought of as a heartthrob.
ET gives you an exclusive behind-the-scenes look at Cooper's real-life talent!
After much anticipation, the debut track from the motion picture soundtrack was released by Interscope Records on Thursday.
The official track and accompanying music video were released on Thursday.
The duo celebrated the Los Angeles premiere of their new film, 'A Star Is Born,' at the Shrine Auditorium on Monday evening.
Lady Gaga Says She'll 'Have a Speak With' Her Mother About 'RHONY' Casting Rumors (Exclusive)
