Jessica Simpson... John Mayer... Alicia Keys... Eva Mendes? Kanye West... Sophia Bush... Mandy Moore... It's not the celebrity guest list for an upcoming awards show, but it is the clientele roster for one of Hollywood's hottest personal trainers. Fitness guru Harley Pasternak is a lean, mean, fat-fighting machine who boasts more than 40 big-name celebrity clients. Now, he's sharing the ins and outs of their customized diet and fitness programs in a hot new guide to a great body that can work for anyone and ...