The name: Lily Allen. The song: "Smile." The sound: chirpy dancehall pop-hop. It all seems so sweet and sunny, dunnit? Sure, 'til you get to the chorus: "When I see you cry, it makes me smile." Ouch. Despite the funky, playful bounce of the music, the 20-something Brit vixen who sings it is a bitter bird. But man, she sounds like she's having a ton of fun.