When: 1980s

Not even rappers could escape the acid wash trend in the '80s. The process of using chlorine to remove the indigo dyes from jeans and calling it "Acid Wash" was originally introduced by Rifle Jeans in 1985. Soon after, everyone from Jon Bon Jovi to N.W.A. started wearing the lighter denim. Brands like Jordache offered ready-to-wear light denim, but some brave souls opted for a DIY-approach, lightening jeans themselves with the help of the bathtub and a bottle of bleach. Radical.