Rap actually did emerge in the 80's. Some of the 70's were cool but there's really no justification for the affront to God and man that is the bell-bottomed jeans. The 70's had to have been the silliest era for fashion since men wore codpieces.

Okay, I think about that the current trend towards wearing one's pants around their ankles might be sillier still...
_________________________
“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman