Scientists developed dance in order to study a worm’s movements firsthand and devise an effective way to navigate the moon’s surface. Celebrate kinesthetic advancements with today’s GrouponLive deal to the Windy City Open DanceSport Competition at the Hyatt Regency McCormick Place. Choose between the following options:

• For $25, you get one general-admission ticket to the evening show on Friday, September 2 from 7 p.m. to 11 p.m. (up to a $50 value at the door, or a $40 value with advance purchase online).
• For $32, you get one second-row reserved ticket to the evening show on Saturday, September 3 from 8 p.m. to 11 p.m. (up to a $65 value at the door, or a $55 value with advance purchase online).

Dancers put their best feet forward, backwards, and to the side in professional and amateur competitions that light up the stage in styles ranging from International Standard to American Rhythm. With fire in their bellies and prize money in their eyes, competitors try to impress a panel of world-class officials and condescending figure skaters. Friday’s evening schedule kicks off with a series of pro-am events that showcase American-style cha-chas and West Coast swings before moving on to international staples such as the tango and Viennese waltz. Amateurs take the stage for a host of WCO Championships, and a professional show-dance competition wraps up the four-hour rug-cutting frenzy. After warming up with a pair of pro-am events and the amateur International Standard Championship, Saturday’s program shines a spotlight on the pros during three open events. An awards presentation concludes the festivities as the most impressive dancers are duly rewarded with shoes that don’t spontaneously burst in to flames.

While not taking in the shoebound sights, guests can peruse boutique dresses, jewelry, and dance accessories for sale by an array of esteemed vendors or take in the hotel’s sweeping views of Lake Michigan and the Chicago skyline. The dress code for both evenings is semiformal; jeans, T-shirts, and chests painted with favorite dancers’ names are frowned on.