Examining diet tricks of the stars, including Star Jones, Kirstie Alley, Kelly LeBrock, Liz Hurley and Victoria Beckham. Also: tips from Jorge Cruise ("The 3-Hour Diet"); David Kirsch ("The Ultimate New York Body Plan"); Jana Klauer ("How the Rich Get Thin"); Ian Smith ("The Fat Smash Diet"); raw-food guru David Wolfe; and celebrity trainer Valerie Waters.