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Beyonce rocked a wild getup while performing at the grand opening of the new Revel Resort & Casino in Atlantic City, New Jersey, last Saturday. The pop princess donned four elaborate, showgirl-esque costumes during the show. “Beyoncé wanted us to be really creative and create fun and edgy designs that had an ultra-glamorous feel to them,” designer Tamara Ralph told People. It was Beyonce’s first live performance since she gave birth to baby Blue Ivy in January. (5/26/2012)

Top Shots of the Week

Miss any of the week's most memorable moments, like Rihanna on the set of "End of the World" or Beyonce's big Atlantic City performance? Check out omg!'s Top Shots!