Julia Roberts comes clean about the ‘hardest drug’ she’s ever tried in VERY candid interview on WWHL

Julia Roberts revealed the “hardest drug” she's ever tried during an appearance on Thursday's episode of Watch What Happens Live with Andy Cohen on Bravo.

The 56-year-old Oscar-winning actress made her debut on the Bravo talk show, playing the signature game Plead The Fifth, in which guests are asked three questions and are not allowed to answer just one.

“Julia, who is your least favorite Real Housewife of all time?” Andy, 55, asked the first question.

'Oh. …Um, I'm going to say, who went to jail?'” replied Julia, who wore a white shirt, black jacket and black skirt during the talk show.

“Jen Shah,” Andy said, referring to the imprisoned cast member of The Real Housewives Of Salt Lake City.

Julia Roberts revealed the “hardest drug” she's ever tried during an appearance on Thursday's episode of Watch What Happens Live with Andy Cohen on Bravo

'Yes. I'm only saying that because she's in jail and I feel safe,” Julia joked.

“Julia Roberts, what's the hardest drug you've ever tried?” Andy asked as a second question.

“Mushrooms,” Julia replied.

'Positive experience?' Andy asked.

'Yes it was fun. I'm not going to lie. Children, don't try it at home,' said Julia.

For his final question, Andy asked Julia to rank “these iconic Julia Roberts films,” but she immediately said, “I'll take the fifth one here,” which refers to the Fifth Amendment to the U.S. Constitution that protects against self-incrimination in criminal cases.

He asked if she wanted to hear the films and after she agreed, Andy said they were Pretty Woman, My Best Friend's Wedding and Notting Hill.

'You see, I heard someone in the audience say, ''Oh!''. You don't want to do it,” Julia said.

The 56-year-old Oscar-winning actress made her debut on the Bravo talk show, playing the signature game Plead The Fifth

“Julia Roberts, what's the hardest drug you've ever tried?” Andy asked as a second question

Andy and Julia took part in a hilarious rendition of Clubhouse Playhouse and reenacted an argument between Kyle Richards and Sutton Stracke on The Real Housewives Of Beverly Hills

Julia also judged a drag queen contestant featuring characters from her hit films

“Right, because they're all so great,” Andy said.

“Sure,” Julia agreed.

“She pleaded the fifth. It's okay. Thanks for playing,” Andy said.

Julia was on the Bravo talk show promoting her new movie Leave The World Behind.