Founded in 1969 by professional dancer Judi Sheppard Missett, Jazzercise remains the original group fitness class for women.

More than 50 years after Jazzercise launched, the dance fitness franchise is still thriving — and so is its 80-year-old founder, Judi Sheppard Missett.

More than 50 years after Jazzercise launched, the dance fitness franchise is still thriving — and so is its 80-year-old founder, Judi Sheppard Missett. Business Insider Subscribe Newsletters ...