Introducing 'Vixen workout', where cardio meets Beyonce

A new workout trend encourages women to unleash their inner Beyonce by giving cardio routines a touch of nightclub sexiness.

Before the music begins, members of the women-only exercise class — dressed in shredded tank tops, full makeup and wedged sneakers — pose seductively before studio mirrors and chant, “Yes, I’m sexy. Yes, I’m fierce. Yes, I’ve got this.”