04/10/2012 12:49 pm ET

The World's Youngest Zumba Instructor

With her hip-shaking moves, easy-to-follow cues and brightly colored wardrobe, Catalina Mejia has made a splash over the past year as a Zumba instructor at Studio X in Gaithersburg. But when her students request private dance lessons, she tells them that they’ll have to work around her school schedule.

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