Heavy metal exploded in 1970 with bands like Led Zeppelin and Black Sabbath. Their in-your-face styles changed music forever.

Halestorm's Lzzy Hale explores the birth of the 90's. From shiny red stilettos and big hair to Doc Martens, West Philadelphia to Bel-Air, and a bunch of Young Guns. Learn more about 1990 this SUNDAY on A Year in Music.