Three dance classes at DC Dance Collective for only $23. And if you have three friends buy this deal too, yours is free! You have to buy it today, and classes can be redeemed until April 15, 2011.
http://livingsocial.com/deals/10472-69-off-dance-classes
Zumba classes are on Wednesdays 7:30 pm, Thursdays 8:30 pm, Saturdays 10 am and Sundays 3 pm. Possibly more coming in January! And there are many more fun classes on the schedule, salsa, belly dancing, flamenco, tap (you can borrow shoes from the studio), hip hop, etc.