Jazzercise was accidentally invented in 1915 when a fire at a James Reese Europe concert caused the audience to burn several hundred calories while trying to escape the venue. Warm your muscles without panicking in a flaming theater with today’s Groupon: for $39, you get two months of access to Jazzercise classes (up to a $138 value) at 10 locations in San Antonio, Schertz, and Cibolo.

Jazzercise is 60 minutes of cardio, strength training, and stretching that incorporates moves from hip-hop, yoga, Pilates, jazz dance, kickboxing, and resistance training with handheld weights. Dancing with the Stars multiple-champion Cheryl Burke is a big fan of Jazzercise's improvisational workouts, though luckily you won't need her dance moves to get the most out of your class. If you're prone to first-class jitters, you can review the basic moves online before you go. Expect to burn off up to 600 calories with each go-round.

Just as varied as the workouts are the class formats themselves. There are special Jazzercises geared to sculpt your bod, cut your workout time in half, or help you get those Rachel Dratch arms you asked for last Christmas. There's even a junior Jazzercise and Jazzercise team dance at some locations, which let you work out with your kids and teenagers. As for the ittie-ditties, childcare is available during select times at many locations.

If Jazzercise is a fleeting '80s memory for you, like your Betamax tape of ALF reruns or the "Frankie Say Relax" T-shirt you wear to do masonry work, today's Groupon gives you a chance to discover how the exercise phenomenon has evolved into one of the better total-body workouts available today. Just leave the hot-pink leotard in your glove compartment.

Valid for new clients or those not registered in the past three months only.