Ross finally gets Emma to laugh, but only by using an inappropriate song. When Rachel finds out, her brain pretty much explodes.
Joey and Chandler discover a tape of what they think is of Monica and Pete in his old apartment, and are dying to watch it!
Phoebe is over at Mike's apartment to meet his parents, but sort of sets a wrong first impression. So then, she decides that she has screwed up and decides to leave, but Mike stops her and tells everyone there he loves her.
This episode is a really, really funny one. At the end of the episode, you get to see Rachel and Ross sing 'Baby Got Back' to Emma, but once they turn around, the rest of the gang is watching them with faces that say, 'What the hell are you two doing.'