Someone rocking the hell out of a Kissshirt or some cowboy boots or a fanny-pack could be a rock star mainly because he/she is very nonchalantly drawing attention to his/herself.
A Douche who cannot function normally without being imbibed in alcohol. He/She swears and yells at insane levels while sober, yet becomes calm and normal when drunk.
Aww that chick is a total Rock Star until she gets liquored up, then she's cool as fuck to be around.