Just Dance waltzes off with 2 million

When Just Dance launched on November 17, 2009, it stood the risk of being crushed by higher-profile releases. However, Ubisoft's rhythm game found a casual-game niche between high-profile hits like Call of Duty: Modern Warfare 2 and Dragon Age: Origins, both released during the same month. Despite being critically panned, the Ubisoft Paris-developed title went from being the 20th best-selling game in the US during December to cracking NPD's top 10 in January and February.

Now, Ubisoft is letting the world know just how successful Just Dance has been. The French publisher announced today that the Wii-exclusive game has sold more than 2 million copies worldwide. The company touted the fact that the game is "on track to maintain its sales momentum for the month of March 2010," meaning it will likely grace the next NPD report, expected April 15. It was also the top-selling game for several weeks in the UK.

The premise of Just Dance is simple: Players pick a song to dance to, hold the Wii Remote in their right hand, and copy the moves of a virtual dancer onscreen. The player's dancing styles and dress change with each song, with the game offering tunes in a variety of genres. Highlights include hits such as MC Hammer's "U Can't Touch This," Blondie's "Heart of Glass," The Trashmen's "Surfin' Bird," Blur's "Girls and Boys," and Katy Perry's "Hot N Cold." It retails for $40 and is rated E10+ for Everyone 10 and over.