Transformation

Read her lips: "Scarlett has the sexiest mouth on Earth," makeup artist Matthew Van Leeuwen has said. Johansson plays up her pout with either a bold crimson shade or clear gloss. "My lips are very full," she has said, "so unless I'm wearing bright red lipstick and making a statement, I usually don't wear lipstick." That's not to say that the star of the upcoming Iron Man 2 isn't immune to her kisser's appeal. As Van Leeuwen has said, "She says, 'Give me those lips, and let's go."

1998: "I had a rich childhood," the Horse Whisperer breakout has said. "A lot of kids growing up have their creativity kind of squashed and not accepted. But I was very lucky—my parents let me do my own thing."