Breathe deeply, stretch out those kinks and assume the lotus position. Whether it's the new millennium or just the winds of change that sometimes sweep through Hollywood, this year's assembly of the alluring is more laid-back about beauty than ever. Julia Roberts and Ricky Martin, among others, spend less time sweating in the gym and more time seeking serenity on the yoga mat. Instead of cosmetic enhancements, some stars are inclined to stick with their imperfections: Party of Five's Neve Campbell has a crooked tooth, and City of Angels' star Blair Underwood's face is sprinkled with scars. Some are perfect just the way they are: Justin Timberlake and Jamie Piccione have no imperfections we can find.  And surprisingly, celebs are aging gratefully. "My happiness has increased by a million percent as I've gotten older," says 30-year-old Heather Graham. Adds Rupert Everett: "I turned 40. It was much nicer than turning 30." That's something to meditate about.

We're bringing you an in-depth look at 25 of the 50, plus games and a poll that you can only get online. Test your memory of the Most Beautiful from past years, see if you can figure out which celebrities' high school photos we've uncovered and don't forget to vote for PEOPLE.com's special list of the 10 Most Beautiful.

Copyright � 2000 Time Inc.