"The One With Joey's New Brain" is the fifteenth episode of the seventh season of Friends, which aired on NBC on February 15, 2001.
Joey's character on Day of Our Lives will finally come out of the coma after they transplant a woman's brain. When Joey consults the woman (Susan Sarandon) about how to best play her character once he is supposed to "become" her, she did not know she was being killed off and flips out. She then agrees to help him because she owes it to her character, leading the two to eventually hook up. Ross says that he has a surprise for Monica and Chandler's wedding, and when they hear someone playing the bagpipes extremely badly across the street they realize that Ross intends to play them at the wedding. Chandler and Monica convince Ross that he cannot do this, but he insists on performing the song "Celebration" to convince them. Rachel and Phoebe notice a cute guy has left his cell phone at the coffee house, and compete over who will get to return it to him. When the owner of the phone shows up, it turns out the cute guy was an older man's assistant and the 60-something year-old is the real owner of the phone. Rachel thinks it's funny but Phoebe still wants to go out with him, so Rachel pretends she is doing Phoebe a huge favor by letting her have him.