Dance Central 2 is an upcoming music video game developed by Harmonix Music Systems for the Xbox 360 Kinect. The game is the sequel to Dance Central. Dance Central 2 was officially announced at E3 2011 during Microsoft's press conference.
Features new to Dance Central 2 include voice control, simultaneous 2-player gameplay in both cooperative and competitive modes with drop in/drop out functionality, an improved fitness mode, a more in-depth and customisable "Break it Down" mode, allowing the player to practice only specific moves in a routine, and a campaign mode featuring dance crews of various styles.
Source: Wikipedia, "Dance central 2", available under the CC-BY-SA License.