Best of 2009

Most Outrageous Faceoffs

From the dresses you can't believe were worn twice – to the stars you'd never imagine having the same taste! – see the most amazing match-ups of the year

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KIM VS. KOURTNEY

Sister battle! Kim wore her H&M white sheath to a magazine party in L.A. in May, while her pregnant sibling Kourtney wore the stretchy dress to Kim's birthday party in Las Vegas this past weekend.