Jennifer Aniston labelled Lisa Kudrow "one of my favourite people on the planet" while Courteney Cox said: "I always feel seen and loved when I’m around you."
Even though the beloved sitcom came to an end in 2004, the cast have worked together many times since.
"If you’ve been lucky enough to know her, you know how incredible she is," Jen said of her Friends co-star.
The BBC reality show is returning for a second series later this year, and is currently on the hunt for contestants.
The Scream star channelled her iconic Friends character as she visited her star a month after its unveiling.