Lady Gaga has made quite a name for herself as a boundary-pushing, tough-as-nails and seemingly down-for-anything pop star.
But it turns out that there are still people who make the Grammy winner nervous, like really nervous.
Case in point: Mr. Tony Bennett!
In an exclusive interview with E! News, Mother Monster admits that she had a funny way of coping with her nerves while working with the jazz legend on their mega-successful album, Cheek to Cheek.
"The second we were in the studio together, it was so magical. We were bouncing improvisation off each other and we were laughing. I was keeping a whiskey under my stool because I was very nervous to be around him," she confessed.
"And then, gradually, we became greater and greater friends. And I think because of that, our singing became more and more honest and more and more authentic."
Gaga also credits Bennett for lifting her spirits and revitalizing her creative juices.
"He's the reason that I'm here today, that I'm still making music, that I'm still excited to make music," she shared.
"Even singing with Tony now, going back on tour, it has completely changed the way I am on stage. It actually revived something in me that I haven't felt in a few years. It's a certain resilience, a certain confidence."
But Gaga also admits that one of the very best things about working with her longtime idols is that she knows she's making her family happy.
"As an Italian-American woman, the biggest things for us in our lives is making our dads proud, and my father has never been more proud of me than he is right now."
Be sure to tune into Tony Bennett & Lady Gaga: Cheek to Cheek LIVE! tonight on PBS at 9 p.m.