Most Beautiful 2008

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, 41. "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