Streaming service HBO Max said it will show the unscripted, one-off special on 27 May following frequent delays due to the coronavirus pandemic.
HBO said along with Jennifer Aniston, Lisa Kudrow, Courteney Cox, David Schwimmer, Matt LeBlanc and Matthew Perry, more than 15 celebrity guests would make cameo appearances.
These include former cast members Tom Selleck, who played Monica’s former boyfriend Richard,and Maggie Wheeler who played Janice, Chandler’s former partner known for her shrill laughter.
From the music industry, Justin Bieber, Lady Gaga, and K-pop band BTS will also feature in “Friends: The Reunion” along with Game of Thrones actor Kit Harington.
A teaser video shared on social media showed the six original cast members walking arm-in-arm across a studio lot.
The video was accompanied by a down-tempo version of the US sitcom’s theme tune I’ll Be There for You by The Rembrandts. A caption described the special as “The One Where We Get to See Our Favorites Back Together Again”.
Cox wrote on Instagram: “This kind of thing doesn’t happen every year, or even every 10, or 15 years. I feel so blessed to have had a chance to reunite with my Friends … and it was better than ever.”
Aniston, referencing a line from an early episode of the show, said: “Could we BE any more excited?!”