I just started doing a new sing-a-long in Clinton Hill. It's in a lovely space, the high-ceilinged and expansive Five Spot soul food restaurant / night spot. The room has a vintage stage, antique furniture, and a nice big space for kids to sprawl and dance.
This sing-a-long is $10 a family (yes, more than any of my others) but it includes a free buffet. The spread includes homemade cornbread and muffins, fresh fruit, drinks for the kids, and more.
Come check it out. Tuesdays at 11:30am.