When the ESRB examined Dance Central they scanned the game’s lyrics. Their rating warns parents of suggestive phrases and also unintentionally reveals a few more songs.
Here’s the description.
This is a rhythm and dance simulation game in which players perform a series of dance moves based on flashcard instructions and an on-screen avatar shown during gameplay. Some song lyrics contain suggestive references (e.g., "Did your girl’s butt," "Body is soft, makin me wanna squish her," "meet him at the door with nothin’ on," and "remove your underwear."). Other lyrics contain language such as "a*s" and references to violence (e.g., "You’re bound to get shot" and "The interior like suicide wrist red").
A quick Google search shows the lines “Did your girl’s butt” and “You’re bound to get shot” are in Flava in your ear from Craig Mack. “Meet him at the door with nothin’ on” is a line from Dip It Low by Christina Milian and “Body is soft, makin me wanna squish her” is a line from Rump Shaker by Wreckx-N-Effect.
Seems like these three songs are going to be in Dance Central.