'85 vs. '05: Sexy Then & Now

From Sean Penn to Ben Affleck and Michael J. Fox to Adam Brody, see how sexy has changed since PEOPLE's first SMA. By Janice Morris

SEXIEST LEGACY

1985: After graduating from Brown, future SMA John F. Kennedy Jr. worked at nonprofits, toured the slums of India and even acted: His stage debut, at age 24 in the Off-Broadway show Winners, opened to a full house.

2005: St. Andrews grad Prince William carried on mum's philanthropic work as a volunteer in Chile. Now 23, the British royal will soon follow in his dad's military footsteps, attending the elite military academy Sandhurst.