Most Beautiful 2013

World's Most Beautiful 2010!

Julia Roberts! Bradley Cooper! Zoe Saldana! See which superstars and rising stars made last year's list

SCARLETT JOHANSSON

Dubbed a "bombshell" when she was just a teen, Johansson, 25, has two must-have beauty staples: "Red lipstick and sandwiches." That's not surprising to her Iron Man 2 director Jon Favreau, who says that "when you're hanging out with her on the set, she's just like one of the guys."