10. New rave

Remember when YELLE came out, Justice's "D.A.N.C.E." was all over the place, and M.I.A. wasn't a mom? That was when someone took a collection of highlighter markers and spilled them all over club kids. You couldn't walk into a rave and not see someone wearing neon. Yeah, day-glo is tolerable in moderation, but when you're head-to-toe in brights, you're probably gonna blind someone—might be yourself when you look in the mirror.