Shocked! Friends: Why The One After Vegas Changes The Cast Members' Last Names?

In season 6 of Friends, the episode "The One After Vegas" included an inside joke related to Courteney Cox and her recent marriage to David Arquette. The show added "Arquette" to all cast members' last names in the opening credits and dedicated the episode to the newlyweds. Unfortunately, Cox and Arquette's marriage ended in divorce, but they remain friends and continue to co-parent their daughter Coco. Despite this, the tribute in the episode remains a heartwarming homage to their relationship.