Detailed text transcripts for TV channel - KGO - 20131008:09:51:00
The next story. >> that is because it is a good workout. one of the hottest dance classes around. we are "up all nightline" with abc's sara hanes. >> reporter: it's 2:30 in the afternoon on a saturday in brooklyn. the doors just opened for one of the trendiest clubs around. >> how are you doing, new york? >> reporter: here it is women only. >> bring it up and stretch your back. >> reporter: this is a vixen workout. >> yes, i'm sexy, yes, i'm fierce. yes, i'm sexy, yes, i'm fierce. >> reporter: 1500 women a week sign up to lose weight while unleashing their inner vixen. a dance fitness routine ...