Baby Emma gets a loose case of the giggles whenever she hears the raunchy rap song "Baby Got Back," courtesy of Ross (David Schwimmer) and Rachel (Jennifer Aniston), but is good for the kid to hear something so baaaaaad? Meanwhile, Chandler (Matthew Perry) gets more than he bargains for when he watches a videotape he has "borrowed" from his wife Monica's (Courteney Cox) former boyfriend. And in trying to make a good impression on the parents of her boyfriend, Mike (Paul Rudd), Phoebe (Lisa Kudrow) succeeds spectacularly in doing just the opposite. ~ Rovi