Beyoncé may have taken a break from performing to give birth to Blue Ivy, but she didn't miss a beat when she returned to the stage on Friday night, kicking off her weekend concert series in Atlantic City. Beyoncé showed off her postbaby body with multiple costume changes, but she joked with the audience that her fit figure didn't come easy. Find out how she says she got back in shape and hear about her tribute to baby Blue Ivy during the show in PopSugar Rush!
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