Description of . Miss Vietnam 2012, Diem Huong Luu, gets her hair done by a CHI stylist backstage during the 2012 Miss Universe Presentation Show on Thursday, Dec. 13, 2012 at PH Live in Las Vegas. The 89 Miss Universe Contestants will compete for the Diamond Nexus Crown on December 19.  (AP Photo/Miss Universe Organization L.P., LLLP)
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