Nicole: Wild to ... Mild?

It's a total-life makeover: From her hair to her diet to her friends, see Richie's most dramatic changes. By Serena Kappes

HER LIFESTYLE

Then: In 2003, Richie was arrested in Malibu for driving with a revoked license and possession of a controlled substance. "They found one balloon of heroin," she says. She was sentenced to three years' probation.
Now: Since going to rehab that year, Richie (at a charity event in August) has been sober. "No drinking, no drugs," she says. "I am definitely happier now."