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11/18/2014 12:38 pm ET Updated Dec 06, 2017

Lisa Vanderpump Dishes On Her A-List Cameos, From Lady Gaga's 'G.U.Y.' Video To 'The Comeback'

As an integral part of both "Vanderpump Rules" and "The Real Housewives of Beverly Hills," Lisa Vanderpump has no shortage of screen time, and she says she isn't looking for more. But when Lisa Kudrow came calling, asking for a cameo from Vanderpump in the highly-anticipated return of her HBO series "The Comeback," it was a no-brainer.

"I've been asked to do quite a few acting things, and I've been so crazily busy," the Bravo star told HuffPost Live in a Monday interview. "But when Lisa Kudrow calls and says, 'Will you be a part of that?', I thought, I've got to do it, because she is iconic when it comes to being a comedic genius, so I was honored that she asked me, really."

While Vanderpump relished having the safety net of a script -- "[I was] pretty secure in the fact that I'm not going to get a glass of water thrown in my face or wine or get a slap!" -- the thrill of seeing Kudrow's improvisational talent shine made her excited to go off-book.

"She's such a great kind of ad-libber, and so, the way she improvises -- I loved working with her," she said. "And just adore her as a person."

It took more convincing for the reality star to make her acting debut in Lady Gaga's 2013 music video for "G.U.Y."

"When Lady Gaga asked me to do the video, I was just like, 'No, I can't work with those women,'" she recounted, referring to her "Real Housewives" co-stars.

But Gaga wouldn't back down. Vanderpump explained:

Then she called me personally. ... I didn't believe it. She said that it's Lady Gaga and I said, 'Yeah, and I'm Beatrix Potter, sure!' And she's like, 'No, no, it's Lady Gaga,' and Andy Cohen was in the background [saying], 'Lady Vanderpump met Lady Gaga!' And I was like, okay, now it's going to be difficult to say no!

And thank goodness -- or rather, thank Andy Cohen's Zeus -- that she didn't.

G.U.Y Music Video

Andy Cohen in Lady Gaga's "G.U.Y." music video

The

The "RHOBH" chamber orchestra in Lady Gaga's "G.U.Y." music video

Watch more from Lisa Vanderpump's conversation with HuffPost Live here.

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