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

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REBEL YELL

Aniston attended her 1987 prom sporting a typically 1980s hairstyle. Even then, the future actress – who graduated that year from New York's LaGuardia High School of Music and Art – showed a dramatic flair. At one point, she sported "a mini-Mohawk ... and lots of liquid eyeliner. I did liquid eyeliner better than anyone in history," she told PEOPLE.