At some point, every country builds a Great Wall to keep the secret of their cuisine from spreading to foreign nations, only to find that the real wall lies in their heart. Tear down the Great Wall of painful secrets with today's Groupon: for $15, you get $30 worth of authentic Chinese cuisine, drinks, and karaoke at Rocksugar on 8 Street East.

This Asian eatery boasts traditional Chinese cooking, a full bar and restaurant, and six private karaoke rooms daring eaters to buck parental entreaties and sing with their mouths full. Try one of the menu's most popular spicy dishes, the firecracker fish, with basa slices, Chinese hot peppers, and bean sprouts ($22), or go wildly authentic with the chicken feet and pickled peppers ($10). Hungry diners can chow down in the comfortable and modern main dining room or karaoke the night away in a sleek reserved room with more than 45,000 songs and a professional sound system, sparing complete strangers from yet another rendition of Wagner's Ring Cycle.