Friends is an unforgettable comedy and Brad Pitt is one of the best actors, making his cameo an iconic pop culture moment.

Celebrities competing on this season include Rachel Brosnahan, Neil deGrasse Tyson, Margaret Cho, Corbin Bleu, Camilla Luddington and Max Greenfield.

Brad Pitt guest-starred on Friends in the episode titled "The One with the Rumor" during the show’s eighth season ... a deep-seated grudge against Rachel Green, played by Jennifer Aniston.