Judi Sheppard Missett, the founder of Jazzercise, leads a class News Photo - Getty Images

Judi Sheppard Missett, the founder of Jazzercise, leads a class inside her Jazzercise Fitness Studio, June 27, 2007 in Oceanside, California. Get premium, high resolution news photos at Getty Images

Judi Sheppard Missett, the founder of Jazzercise, leads a class News Photo - Getty Images

How Judi Sheppard Missett and Her Family Revolutionized Fitness with Jazzercise (Really!)

45 Judi Sheppard Missett Photos & High Res Pictures - Getty Images

Judi Sheppard Missett, the founder of Jazzercise, leads a class News Photo - Getty Images

Jazzercise Introduces Two New High Intensity Interval Training (HiiT) Workouts

Judi Sheppard Missett, the founder of Jazzercise, leads a class News Photo - Getty Images

Judi Sheppard Missett, the founder of Jazzercise, leads a class News Photo - Getty Images

Jazzercise Turns Fifty

Jazzercise and the 3 generations of women running it for 50 years