Don't expect Lady Gaga and Bradley Cooper to be mixing business with pleasure!
The duo will work together on Warner Bros.' upcoming A Star Is Born remake, and has already been getting close behind the scenes ahead of filming. In an interview on Howard Stern's SiriusXM radio show on Monday, the pop star gushed over her co-star and director -- but didn't mince words when asked if their relationship might turn romantic on the set.
"Absolutely not!" the newly single Gaga said. "I already love everyone and the idea is, if you really love somebody, you put the most important thing first and that is the film. The truth is, what's most important to me is that we tell a story that touches the hearts of millions of people that come to see it."
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Stern did not ask Gaga about her split from former fianc�� Taylor Kinney during the interview. However, the host did dole out some light ribbing over whether Gaga would be able to keep things professional while filming love scenes with Cooper.
"This is a movie that is a love story, as well as a story about the inner, sort of, behind-the-scenes workings of becoming a star and what happens," she said. "I've already done plenty of love scenes. Yes, I'm a professional. I can do that!"
Cooper was on-hand for Gaga's Saturday Night Live performance over the weekend, offering a supportive hug backstage after her set.
"It was so nice," she gushed, explaining that she burst into tears immediately after singing "A Million Reasons." "When it was done, I just felt relieved and I was crying, and I walked off and Bradley was right there and Dave Chappelle was right there with him. They both gave me a big hug and they were like, 'You did it! That was amazing!'"
Elsewhere in Studio 8H, another less-pleasant surprise was awaiting Gaga offstage.
"[My stylist], from time to time, will glue my underwear to my you-know-what -- without even asking," she confessed with a laugh.
"Brandon [Maxwell], he's getting me ready, and he can never watch when I go out 'cause he's so afraid something's gonna pop out," she continued. "He didn't tell me and glued my underwear. ... When the show was over, I went to the bathroom and I was like, 'What the f**k? I can't get my underwear off!' ... And then I'm on my phone texting him like, 'You mother f**ker! Why didn't you tell me?'"
Lady Gaga has been busy promoting her new album, Joanne, which was released on Friday. To mark the occasion, Gaga celebrated with a look-alike drag queen -- natch! See the moment below.