Ruth Bader Ginsburgmeet … Ruth Bader Ginsburg!

The Supreme Court justice ran intoSaturday Night Live‘sKate McKinnon— who famously plays Ginsburg as a feisty sprite with a stand-up’s spirit, no larger than a flea and sharper than a razor blade — when the two attended an off-Broadway performance ofFiddler on the Roofon Tuesday night, PEOPLE confirms.

“Both were incredibly gracious and kind,” a source at the scene tells PEOPLE, noting the women “raved about how much they loved the show.”

McKinnon “was star struck,” according toFiddleractor Nick Raynor, whorecorded part of their meetingin a video later shared on Twitter.

Jeff Spicer/Getty; Michael Kovac/Getty

GORLESTON-ON-SEA, ENGLAND - JUNE 21: Kate McKinnon attends special screening of Yesterday on June 21, 2019 in Gorleston-on-Sea, England. (Photo by Jeff Spicer/Getty Images for Universal Pictures International) NEW YORK, NY - SEPTEMBER 21: Supreme Court Justice Ruth Bader Ginsburg holds a copy of her new book ‘My Own Words’ after An Historic Evening with Supreme Court Justice Ruth Bader Ginsburg at the Temple Emanu-El Skirball Center on September 21, 2016 in New York City. (Photo by Michael Kovac/Getty Images)

“Ruth and Kate both came into the house right before the curtain rose for Act 1, so not a lot of people noticed,” the source explains. “But at intermission, word spread with the crowd and they went crazy for her, giving her a standing ovation after she came back from the bathroom. Someone even shouted ‘Rock on Ruth!’ It was electrifying.”

“These two incredible women — it could not have made me happier,” Grey, 87, tells PEOPLE. Ginsburg, whom he says he last saw at a friend’s son’s bar mitzvah a few years ago, “was generous and sweet. The audience went crazy for her.”

From left: Joel Grey and Kate McKinnon.Tricia Baron

Joel Grey Kate McKinnon

Actress Jodi Snyder, who appears in the musical,shared on Instagramthat Ginsburg’s ovation lasted two minutes.

“Ruth was so gracious, smiling, waving and shaking hands with fans,” says the source there on Tuesday. “Kate got up at one point from her seat and shook Ruth’s hand, too. She was overjoyed and was cheering Ruth on with the rest of the crowd. It was adorable.”

While she took pictures afterward with the cast and crew, “Every stage hand was there,” Grey says. “You’ve never seen happier faces on 50 people.” (Both Ginsburg and McKinnon were “thrilled and moved, it’s that kind of show,” he says, “Especially in these times.”)

Kate McKinnon as Ruth Bader Ginsburg onSaturday Night Live.Will Heath/NBC/NBCU Photo Bank via Getty

SATURDAY NIGHT LIVE – “Gal Gadot” Episode 1727 – Pictured: (l-r) Kate McKinnon as Ruth Bader Ginsburg Associate Justice of the Supreme Court of the United States, Colin Jost, Michael Che during “Weekend Update” in Studio 8H on October 7, 2017 – (Photo by: Will Heath/NBC/NBCU Photo Bank via Getty Images)

McKinnon, who has been withSNLsince 2012, has played Ginsburg since that year.

Though the long-serving justice, who leads the court’s liberal wing, has said it’s not anexactimpression, McKinnon’s version tickles her nonetheless. She watched some of McKinnon’s sketches during filming forRBG, a documentary about her life,where she called McKinnon“marvelously funny” if “not one bit” like her.

Asked about it last year, while doing press for theRBGpremiere,Ginsburg said, “I liked the actress who portrayed me.”

And then, perhaps channeling a bit of McKinnon’s version of herself, Ginsburg added: “And I would like to say ‘Gins-burn’ sometimes to my colleagues.”

Liz McNeil

source: people.com