Grunge is back!
Indeed, grunge is one of my favorite style beside casual and chic. Grunge style conveys an "I don't give a fuck" attitude-urban dictionary. Moreover, this style is loosely tied in with rock and punk. So, the grunge people are them who live for music, their cloth filthy, and wateva foreva \m/

Fyi, the modern grunge also well-known as greebo-urban dictionary. Their style also different from the original grunge. 
The original grunge style are about; ripped, floaty dresses, bright tights, stompy boots, dirty jeans, leather jacket, and punk skirt. On the other side, greebo style are about; black, black, black, black, and baby black. 

"who gives a damn what i'm wearing" "be grunge, be bold"