“Lady Marmalade” accomplice Christina Aguilera comes off desperate and shrill singing about table dancing and sweating her clothes off on the R&B-leaning Dirty. The tune, featuring rapper Redman, suggests that the teen queen-turned-barely clad tart is making a misguided Mariah-like bid for street cred. And the burping, underproduced track is so scant and garish that you can almost imagine her wearing it.

Grade: D-