Tina Jackson teaches the “Cha Cha Cha” at a drop-in soul line dancing class at Oxford Community Center in St. Paul, Minn. on Tuesday.

If you weren’t line dancing at honkytonks in the 1990s to “Achy Breaky Heart,” the name Diane Horner probably means nothing to you. But her face might ring a bell. She was the Midwestern fitness ...

Theresa Marshall, also known as the “Hustle Lady,” has the most fun when she’s on the dance floor and is eager to teach ...