Philadelphia Street Style: Desiree, Walnut St

Desiree is wearing a pair of Urban Outfitter denim shorts, a Forever 21 shirt and Doc Martens boots. She listens to pop punk and "anything alternative." Been hearing that word floating about a lot lately, "alternative." It meant something very specific to me back in the early 1990s and then its usage seemed to fall off. I wonder what it means now.