Celebrity Celebrity Relationships Celebrity Friendships Courteney Cox on the 'Unbelievable,' 'Emotional' 'Friends' Reunion: 'A Lot of Special Surprises' Courteney Cox chatted with Ellen DeGeneres on Thursday about the show's upcoming reunion and about the iconic fountain scene in the hit comedy's opening credits By Jen Juneau Jen Juneau Jen Juneau is a News and Movies Staff Writer at PEOPLE. She started at the brand in 2016 and has more than 15 years' professional writing experience. People Editorial Guidelines Published on May 6, 2021 10:13AM EDT For Courteney Cox, taping the upcoming Friends reunion was nothing short of an "unbelievable" experience. "It was so emotional," the actress, who played Monica Geller on the hit NBC comedy from 1994 to 2004, said while appearing on The Ellen DeGeneres Show Thursday. She continued of the special, taped last month, "It's an unscripted reunion, but we got to be on Stage 24 for the first time, all of us, in like … 17 years." Cox, 56, admitted that she has "the worst memory," but during her time on Stage 24 with the rest of the core cast — Jennifer Aniston, Lisa Kudrow, Matthew Perry, Matt LeBlanc and David Schwimmer — "everything came up that I [had forgotten] about." "But it was great. It was really fun," she continued. "We had a lot of special surprises, and it was fantastic. It really was." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories. Friends cast. David Bjerke/NBCU Photo Bank Courteney Cox on The Ellen DeGeneres Show. Michael Rozman/Warner Bros. Courteney Cox Shows How She Channels Her Friends Character in Her Daily Life: "Tell Me You're a Monica" Cox also dished on the iconic fountain scene in the show's opening credits, saying it "definitely wasn't" her idea but that "somebody thought that would just be really fun." "We were in that fountain for a long time," she said. "And let me tell you what happens: It's not fun to be dancing in a fountain for hours and hours." "I remember Matthew Perry saying at one point ... 'Can't remember a time that I wasn't in this fountain,' " Cox recalled. "Literally, we were just like, 'Oh my God, how much longer am I gonna pretend I love dancing in the water?' It was fun, but not really." "I should've directed that; you would've been out real fast," Ellen DeGeneres joked. Friends cast. NBC/NBCU Photo Bank via Getty RELATED VIDEO: Friends Forever! Jennifer Aniston, Courteney Cox and Lisa Kudrow Reunite for Girls' Night Friends originally aired for 10 seasons on NBC from 1994 to 2004. The reunion special was first announced in February 2020 by HBO Max and was scheduled to premiere that May, but was delayed indefinitely due to the COVID-19 pandemic. After confirming that the reunion had been pushed back, former WarnerMedia Entertainment and Direct-to-Consumer chairman Bob Greenblatt said they still planned on taping the special in front of a live studio audience on the soundstage in Burbank, California. While Schwimmer, 54, couldn't say much about the reunion during a recent appearance on The Graham Norton Show, the actor, who played Monica's brother Ross Geller on the series, confirmed that he and his costars would be appearing as themselves, and not in character. "There's nothing scripted, we're not in character," he explained. "We are all ourselves, although there is one section of it that I don't want to give away, but we all read something."