The Rattle is produced by vibration of the cuneiforms or mucosa over the cartilages, either freely or against the epiglottis. ...This indicates that the vibrations of the vocal folds are unhindered and unaffected by the distortion and rattle. So the vocal folds are vibrating freely under the distortion and rattle.
Well as long as you know how to dance and you enoy doing it, then theres nothing wrong with dancing to hip-hop. But if you want to look good while dancing then just practice.