Gather your crew for some family harmonizing and sock-hopping on the martial arts studio's padded mats. As the evening kicks off, little ones see how low they can go in a limbo contest, while teens and adults take over the dance floor later at night. Snacks and refreshments will be provided, and grown-ups can bring their own wine or beer. All proceeds benefit NYC Rock Camp, a summer program in Brooklyn and Staten Island for local wannabe rock stars. All ages.