Singer Beyonce performs on the opening night of her "Mrs. Carter Show World Tour 2013", on Monday, April 15, 2013 at the Kombank Arena in Belgrade, Serbia. Beyonce is wearing a gold and black ... more 
Singer Beyonce performs on the opening night of her "Mrs. Carter Show World Tour 2013", on Monday, April 15, 2013 at the Kombank Arena in Belgrade, Serbia. Beyonce is wearing a gold and black one-piece with skirt by designer David Koma. (Photo by Frank Micelotta/Invision for Parkwood Entertainment/AP Images) less 
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Associated Press
Tue, Apr 16, 2013 9:23 AM EDT