How I Built This with Guy Raz

Zumba: Beto Perez & Alberto Perlman

We're hard at work planning our upcoming live show, so we bring you this favorite from the last year: Zumba. Zumba began as a mistake: aerobics teacher Beto Perez brought the wrong music to class, then improvised a dance routine to go with it. For his students, it was more fun than work — and it eventually grew into one of the biggest fitness brands in the…