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Billboard Music Awards 2013: 10 Best Moments (Photos)

<div class="meta "><span class="caption-text ">Jennifer Lopez took part in a high-energy performance of &#39;Live It Up&#39; with Pitbull at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas.  In typical JLo fashion, she blew the audience away -- prompting one Hollywood actress to Tweet her appreciation.  &#39;My girl @JLo let us have it #BBMA #Wow,&#39; Jessica Alba Tweeted shortly following her performance. (Photo&#47;Vince Bucci &#47; ABC)</span></div>
May 20, 2013 8:22:01 AM PDT