The Emerald Theatre complex opened in October of 2000 as a multi-purpose entertainment complex housing the Emerald Theatre, which plays hosts to concerts and other live events, and the Emerald Ballroom, which has become Metro Detroit's biggest dance party. Every Friday & Saturday night, the Emerald Ballroom is the place to go to be seen, and the place to party. The ballroom has two VIP suites available for rent, as well as table service in our exclusive VIP Booths. Also inside the Emerald is the cozy "Rock Room" which plays nothing but rock music, four nights a week. There's never a cover in the Rock Room. There is no atmosphere quite like the Emerald, where we truly have something for everyone.
..
Background from Yahoo search result
..