As soon as Mariah Carey walked onto the field at the Tokyo Dome last May, you knew things weren't going to end well. The first giveaway: her staggering, four-inch heels. (Her itty-bitty short- shorts don't exactly scream athleticism either). Perhaps just as disturbing, though, are the mascots who escorted her and the cameraman's lingering gaze at Ms. Carey's stems.