"FILE - This Feb. 12, 2012 file photo shows Rihanna at the 54th annual Grammy Awards in Los Angeles. CBS has issued a memo to Grammy Awards attendees against baring too much skin at the ceremony Sunday. The network requests that ""buttocks and female breasts are adequately covered"" for the televised award show. The memo sent out Wednesday, Feb. 6, 2013, also warned against ""see-through clothing,"" exposure of ""the genital region"" and said that ""thong type costumes are problematic."" (AP Photo/Chris Pizzello, file)"
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