on this new exercise routine. why exercise when you can prancercize? is it a workout or is it a spoof? it is definitely something to behold. let's pick up the pace. >> with the prancercise strut. it's really hot. >> reporter: the outfit, the jewelry, the '80s style. is this real? when you prancercise, what's it make you feel like? >> um, it makes me feel liberated. >> reporter: 60-year-old joanne a rohrback of florida started it years ago. >> it didn't start catching on until this week, i think. >> reporter: when blogs started featuring the video she put online last year, she had already written a book and created a website. she describes prancercise as -- >> springy, rith nick movement forward, similar to a horses gait, ideally induced by