Katy Perry in concert: Onstage and offbeat
Pop vixen Katy Perry can pull off anything, and we mean anything -- from popping out of bananas and popcorn to seashells and bubbles. Here, we sample the star's performances over the years.
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Katy Perry delivered an emotional performance at the 2015 Grammy Awards in Los Angeles, singing "By the Grace of God," the first song she wrote for her album "Prism."