Most Beautiful 2009

World's Most Beautiful People

From superstars like Kate, Salma and Carrie to hot newcomers (the cast of Gossip Girl!), get a peek at who's on PEOPLE's 100 Most Beautiful list!

SALMA HAYEK

The new mom is beautiful inside and out, having signed on as ambassador for a Pampers/UNICEF program that provides tetanus shots to babies and mothers in developing countries. (Every pack of diapers with a UNICEF logo sold pays for one shot.) "You give them the vaccine, they don’t die," says Hayek. "It's not just about creating a better world for my daughter, Valentina, but also being more passionate about diminishing the suffering of women and children all over the world."

To learn more, go to www.unicefusa.org