Andy Cohen reveals the one question he was most nervous to ask a celebrity

Andy Cohen is no stranger to the occasional awkward moment. Without any pre-interview process before his late-night Bravo talk show “Watch What Happens Live,” guests never know what topics will come up.

He’s asked Shaquille O’Neal about his “shoes size,” Anne Hathaway if she’s a stoner and Meryl Streep on which co-stars she’d rather shag, marry or kill. Last week, he was even called a “messy queen” by one of his guests for apparently going a little too far.

But as the show celebrates its 10th anniversary on air and all of its jaw-dropping moments, AOL Lifestyle sat down with Cohen as part of his partnership with Purina ONE to ask if he’s had any regrets over the years. 

“So many,” he admitted. 

“I mean, we didn’t have the ventilation figured out in the early years, so I was sweating so much. And things I’ve said, mistakes I’ve made, names I’ve mispronounced,” he added.

However, asking Cohen if he’s ever been nervous to ask some of the more cringeworthy questions, he said there was one moment in particular that made him really sweat.

“Asking Oprah if she had ever had swum in the lady pond. I felt time stand still when that happened,” he admitted.

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Andy Cohen and Oprah in 2013
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Andy Cohen and Oprah in 2013
WATCH WHAT HAPPENS LIVE -- Episode 10040 -- Pictured: (l-r) Andy Cohen, Oprah Winfrey -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE -- Episode 10040 -- Pictured: (l-r) Andy Cohen, Oprah Winfrey -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE -- Episode 10040 -- Pictured: (l-r) Oprah Winfrey, Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
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Cohen sat down with Oprah in 2013 and admitted to Today in June that he was extremely nervous to interview her. 

“That was the most nervous I’ve ever been for anybody to be on my show. I’m such an Oprah fan,” he told them. “I remember sitting in the studio before she was there, literally just running through everything we were doing in my head.”

In the next 10 years, Cohen said he’d love to have Madonna, Michelle Obama, Justin Timberlake and Beyoncé join him on his show, none of whom have ever been on before. 

Cohen also revealed to AOL Lifestyle that there are a few stars who he has blacklisted from his show, deeming them "not worth the trouble" and “too annoying” to come back. While he didn’t reveal names on the list, we have a few guesses.

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Andy Cohen out and about
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Andy Cohen out and about
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured (l-r): Andy Cohen, Ariana Madix and Scheana Shay -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - FEBRUARY 12: Andy Cohen and Patricia Clarkson visit SiriusXM Studios on February 12, 2018 in New York City. (Photo by Santiago Felipe/Getty Images)
NEW YORK, NY - FEBRUARY 5: Andy Cohen attends the Todd Snyder February 2018 fashion show during New York Fashion Week: Mens' at Pier 59 Studios on February 5, 2018 in New York City. (Photo by Paul Bruinooge/Patrick McMullan via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Peter Kramer/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JANUARY 23: Andy Cohen attends the 92nd Street Y Presents Dan Rather Discussing His New Book 'What Unites Us' at 92nd Street Y on January 23, 2018 in New York City. (Photo by Jamie McCarthy/Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- BELOW DECK REUNION -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - NOVEMBER 16: TV host Andy Cohen attends the screening of Sony Pictures Classics' 'Call Me By Your Name' hosted by Calvin Klein and The Cinema Society at Museum of Modern Art on November 16, 2017 in New York City. (Photo by Jim Spellman/WireImage)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - NOVEMBER 08: SiriusXM's Town Hall with Mark Wahlberg and Will Ferrell hosted by Andy Cohen (C) at SiriusXM Studios on November 8, 2017 in New York City. (Photo by Cindy Ord/Getty Images for SiriusXM)
NEW YORK, NY - MAY 15: Andy Cohen attends the 2017 NBCUniversal Upfront at Radio City Music Hall on May 15, 2017 in New York City. (Photo by Taylor Hill/FilmMagic)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MAY 08: SiriusXM host Andy Cohen and actress Diane Lane pose for photos during a taping of 'Andy Cohen Live' on SiriusXM's Radio Andy at the SiriusXM Studios on May 8, 2017 in New York City. (Photo by Ben Gabbe/Getty Images)
NEW YORK, NY - MAY 05: Andy Cohen and Naomi Campbell attend Sean Penn & Friends HAITI TAKES ROOT: A Benefit Dinner & Auction to Reforest & Rebuild Haiti to Support J/P Haitian Relief Organization at Sotheby's on May 5, 2017 in New York City. (Photo by Kevin Mazur/Getty Images for J/P Haitian Relief Organization )
NEW YORK, NY - MAY 05: TV personality Andy Cohen attends The Sean Penn & Friends Haiti Takes Root Benefit Dinner & Auction Supporting J/P Haitian Relief Organization at Sotheby's on May 5, 2017 in New York City. (Photo by Monica Schipper/WireImage)
NEW YORK, NY - MAY 05: (L-R) Andy Cohen, David Diehl, and Christy Turlington speak onstage during MTV's 2017 College Signing Day With Michelle Obama at The Public Theater on May 5, 2017 in New York City. (Photo by Mike Coppola/Getty Images for MTV)
TODAY -- Pictured: Hoda Kotb, Kathie Lee Gifford and Andy Cohen on Wednesday, May 3, 2017 -- (Photo by: Nathan Congleton/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MAY 01: Goldie Hawn, Andy Cohen and Amy Schumer during the SiriusXM Town Hall with Goldie Hawn and Amy Schumer on Andy Cohen� Exclusive SiriusXM channel Radio Andy at SiriusXM Studio on May 1, 2017 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured (l-r): Tamra Judge, Andy Cohen and Dorinda Medley -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - APRIL 26: Television personality Caitlyn Jenner (L) and host Andy Cohen speak during the SiriusXM 'Town Hall' with Caitlyn Jenner; 'Town Hall' to air on Andy Cohen's exclusive SiriusXM Channel Radio Andy at SiriusXM Studios on April 26, 2017 in New York City. (Photo by Dimitrios Kambouris/Getty Images for SiriusXM)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MARCH 06: (EXCLUSIVE COVERAGE) (L-R) SiriusXM host Andy Cohen poses with actor Samuel L. Jackson during a taping of SiriusXM's Radio Andy at the SiriusXM Studios on March 6, 2017 in New York City. (Photo by Astrid Stawiarz/Getty Images)
BOSTON, MA - MARCH 04: Bravo Media's Andy Cohen hosts The 8th Annual Lenny Zakim Fund Casino Night In Boston at Four Seasons Hotel on March 4, 2017 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images for The Lenny Zakim Fund )
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - FEBRUARY 27: Lisa Kudrow (R) and Andy Cohen pose together at SiriusXM Studios on February 27, 2017 in New York City. (Photo by Rob Kim/Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - FEBRUARY 15: Andy Cohen and Ricky Martin attend SiriusXM's 'Town Hall' With Ricky Martin (L); 'Town Hall' To Air On Andy Cohen's (R) Exclusive SiriusXM Channel Radio Andy on February 15, 2017 in New York City. (Photo by Anna Webber/Getty Images for SiriusXM)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured (l-r): Andy Cohen, Tracee Ellis Ross and Shaun White -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured (l-r): Andy Cohen, Lisa Rinna and Eileen Davidson -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JANUARY 27: Tim Olyphant and Drew Barrymore interviewed for SiriusXM's Town Hall to air on Andy Cohen's Exclusive SiriusXM Channel Radio Andy on January 27, 2017 in New York City. (Photo by Cindy Ord/Getty Images for SiriusXM)
LATE NIGHT WITH SETH MEYERS -- (EXCLUSIVE COVERAGE) -- Episode 477 -- Pictured: (l-r) Host Seth Meyers talks with Andy Cohen backstage on January 24, 2017 -- (Photo by: Lloyd Bishop/NBC/NBCU Photo Bank via Getty Images)
LATE NIGHT WITH SETH MEYERS -- Episode 477 -- Pictured: Andy Cohen during an interview on January 24, 2017 -- (Photo by: Lloyd Bishop/NBC/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Andy Cohen -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
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