The Xbox 360 version of Just Dance 3 used Kinect voice recognition for its “Shout Out” feature. Kinect allowed the game to detect spoken or sung input in addition to tracking the player's body movements.
In Shout Out, players were prompted to sing a colored on-screen lyric when the relevant icon appeared. Successful participation earned an additional Mojo point, making the feature a small performance challenge within the larger dance routine. The Xbox 360 release also offered short and full song versions and separate scoring approaches for its difficulty levels.
Just Dance 3 marked an important expansion beyond the Wii, where the series had begun. The Xbox 360 edition supported Kinect, while the PlayStation 3 version supported PlayStation Move. The Wii version used Wii Remotes instead, so it did not provide the Kinect-based voice-recognition feature. That hardware distinction makes Xbox 360 the single canonical answer.