Zumba Fitness

Go to Play, Xbox Live, and either try to join a session or set up a gaming session on TA to get some people together and then have one of them host so that you can join their session. If you want this to go faster, definitely do 10, 20 minutes classes. There really is no online community for this game at all times so you're going to want to have a partner to do this with or set up session on TA and facebook. Zumba Kinect 100! is a great group to join on facebook for all the online achievements. People coordinate classes so you'll be able to get this done fast and dance with some different gamertags. Once you have joined and completed 10 online classes, this achievement will pop.