Contrast Between a Lush Pop Princess and Wacky Singer-Songwriter.

Explorer and environmentalist Jean-Michel Cousteau. The son of famed oceanographer Jacques Cousteau, Jean-Michel has spent much of his life aboard their ship, "Calypso," traveling the world and learning about its wonders and peoples. Jean-Michel is now director of expeditions for the Cousteau Society, and he led the Society's recent voyage to Papua New Guinea. His logbook from that expedition has just been published, and the trip will also be featured as the first episode of a new T-V series, "Cousteau's Rediscovery of the World."

Baseball manager Tony La Russa. For the past two years, he's led the Oakland Athletics to the World Series. La Russa has been called one of the most intelligent, cerebral and innovative managers now in the game. His style of clubhouse management - taping all American league games in the clubhouse so batters can study upcoming opposing pitchers, computer analysis of statistics to show which batters hit best in clutch situations - is widely imitated and has been credited with revitalizing the American League West, once thought to be the weakest of all four divisions.

Critic at large Laurie Stone reviews comic Billy Crystal's new HBO special, "Midnight Train to Moscow." The premise is that Crystal has been invited to be the first American stand-up artist to perform in the Soviet Union. In addition to his act, there are cameo appearances by a flock of Crystal characters.