Please note: this business is now closed; nycgo.com keeps record of many old and closed venues. Duo Restaurant & Lounge is the epitome of sexy sophistication on Madison Avenue. Owners and sisters Sabina and Lorraine Belkin, created the glitzy concept to give New Yorkers a refined yet plush place to spend their nights out where the food and service is top notch. The glamorous interior includes a velvet-covered wall with hand-placed Swarovski crystals, roomy banquettes and a stunning seven-foot crystal chandelier. Duo's menu features contemporary American cuisine with seasonal ingredients utilized in an approachable yet sophisticated manner. The cocktail menu is second to none with more than a dozen original recipe cocktails and "Signature Sippers." A private dining room has a capacity of 35 seated, 50 cocktail. The entire restaurant is available for buyout for corporate events and private parties, with a capacity of 120 for buyout seated dinners, and 300 for cocktail receptions.