A pair of Levis jeans may be as American as apple pie, but your street cred was definitely in question if you didn't own any pairs of Guess jeans in the 80s. Founded in 1981 by brothers Paul and Maurice Marciano, Guess was one of the first brands to introduce designer jeans, which were initially were available exclusively for women, but later introduced a men’s line in 1983. Popular for the brands hip emblem, which featured the famed question mark in the center, Guess denim became a hot pick among hip-hop enthusiasts and suburbanites alike -- with everyone to rap artists to pop culture icons like Micheal J. Fox' rocking the jeans. His character, Marty McFly, in the 1985 flick, Back to the Future, reportedly wore Guess jeans designed specifically for the movie. Guess would enjoy massive success until the brand hit a snag during the early '90s after they were hit with allegations of sweatshop labor use, as well as rising competition from rival brands like Calvin Klein, Diesel, and Gap. But the fashion brand would reinvent itself during the '00s, introducing new additions like watches, jewelry, and perfume. Guess may not be as prominent as it was two decades ago, but its status as one of the premier clothing brands of the hip-hop era is solidified -- without question.