• NICKY VS. ASHLEE photo | Ashlee Simpson, Nicky Hilton

Credit: A. Love/Splash News online; Danny Moloshok/ap

Published: Friday April 27, 2007 06:00 AM EDT



It's a battle of the younger sisters! The heiress hit the post-Oscar parties in her D&G minidress, while the singer rocked the Sony/BMG Grammy party in hers several weeks before.

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