Lisa Kudrow has shared further details about the upcoming "Friends: The Reunion" show.
The stars don't perform in character, and it was completely unscripted, she told the New York Post.
A slew of celebrity guests will make appearances, and Kudrow was shocked to see Justin Bieber.
Lisa Kudrow has revealed more details on what fans can expect from the highly anticipated upcoming "Friends" reunion episode.
"Friends: The Reunion" is set to air on May 27 on HBO Max with all the main actors in the iconic sitcom returning.
But the stars will not be performing in character, Kudrow, who played Phoebe Buffay in the hit series, told the New York Post.
"It's completely unscripted," she said. "It's us seeing each other and they rebuilt the sets on [the show's original Warner Bros soundstage] Stage 24. It's done really well, too."
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Kudrow will be joined by co-stars Jennifer Aniston, Courteney Cox, Matt LeBlanc, Matthew Perry, and David Schwimmer.
The episode was originally due to air in May 2020 but was delayed because of the coronavirus pandemic. It was ultimately filmed the week of April 5, 2021.
Filming the one-off show was "emotionally exhausting and great," Kudrow said, adding that there was both laughing and "real blubbering."
The cast was shown behind-the-scenes clips from their time on "Friends," which aired between 1994 and 2004 - unbeknownst to the actors, a crew member had been shooting home movies over the years.
There will also be appearances from actors who played smaller characters in the show, such as Maggie Wheeler (who played Janice) and Reese Witherspoon (Jill Greene), as well as various other celebrity guests including Justin Bieber, BTS, Mindy Kaling, James Corden, David Beckham, Lady Gaga, Kit Harington, Cara Delevingne, Malala Yousafzai, and more.
"I was like, 'Wait, that's Justin Bieber. Right? Would he be here? Is he here? He's really here; that's Justin Bieber!" Kudrow said.
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