Becoming ... Jennifer Aniston

Though she bid a tearful adieu to Friends, Jennifer Aniston has plenty to smile about. The actress says she's looking forward to her next project: starting a family. See the defining moments in the life of PEOPLE's Most Beautiful cover girl. By Serena Kappes

BODY BEAUTIFUL

Once told to lose 30 lbs. by an agent, today the svelte star (vacationing in Cabo San Lucas in 2002) – named one of PEOPLE's 50 Most Beautiful People in 2002 – keeps fit by working out three times a week and following The Zone diet, which dictates a 40-30-30 ratio of carbohydrates, protein and fat.