Star Tracks
The Lacheys celebrate Simpson's new CD in Hollywood. Plus: Madonna, Heidi Klum, the Olsens and more
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TOGETHER ... WHERE EVER
Ashley (right) and Mary-Kate Olsen hook up in Hollywood Thursday at a party for design house Tsubi at the Chateau Marmount. Mary-Kate took a leave of absence from her studies at NYU this semester to return to the West Coast and the twin moguls' billion-dollar company, Dualstar.
