KellyRowlandXFactor

Looking fierce! Beyonce kicked off her Mrs. Carter Show world tour last night in Serbia and the biggest talk that came out after the show wrapped? All her costumes! Check out all the hot looks she rocks onstage here. Besides rocking the stage, B is also rocking another thing -- girl power...

Beyonce brought some female spirit to the football stage in a dance-heavy, 13-minute performance at the Super Bowl. She sang live, too, with her background singers helping as the pop star danced around the stage. She emerged onstage singing some of "Love on Top," transitioning to her hit "Crazy In Love" in an all-black ensemble...