Mary-Kate and Ashley Olsen were supposed to spend their 18th birthday together on June 13. But the celebration was put on hold after Maty-Kate (far left) cheeked into the Cirque Lodge rehab facility "in Sundance, Utah, for treatment of an eating disorder. She was well enough by September to begin classes, along with her sister, at New York University. Still waiting to settle into a $7.3 million penthouse in the trendy West Village, they've been spending after-school hours at late-night haunts (Nobu, Bungalow 8, Pastis and Butter, co-owned by Ashley's friend Scott Sartiano). As for Mary-Kate's health, her battle is ongoing, said her rep, but she's in no danger of a relapse.

SOBERING UP
These four women sought help for substance-abuse problems. "I'm finally completely me again," Whitney Houston said after treatment. "I feel much stronger than ever before."

COURTNEY LOVE
In July a judge banned alcohol and drugs and prescribed counseling.

DONATELLA VERSACE
The designer checked into a clinic for cocaine addiction in July.

WHITNEY HOUSTON
After five days of rehab for "substance abuse," she began private care.

KELLY OSBOURNE
In April she weaned herself off painkillers at Promises in Malibu.