The vibe: Fly Dance Fitness, which has over one million followers on Instagram, is known for high-cardio, hip-hop-based dance classes taught in a party-like atmosphere. Classes are also designed to be ...

Dancers at the Colorado Dance Collective practice their dance moves during the Hip Hop Madness event at the Millennium Event Center in Greeley on Saturday. (Jim Rydbom/Staff Photographer) POTS, ...