Fashion designer Hedi Slimane pushed the skinny aesthetic forward when he redesigned Dior Homme, especially with the lauded denim line, which inspired GOOD Fridays' "Christian Dior Denim Flow." In that song, Kanye West name drops a bunch of fashion models, while Kid Cudi confesses that he loves the jeans for the way they complement his skinny frame. Cudi is also a fan of French denim brand A.P.C., and has a few well-worn pairs in his wardrobe.
Soon enough, brands like Balmain and Balenciaga began to infiltrate rappers' wardrobes like Pusha T, Theophilus London, and Swizz Beatz. As newer guys like A$AP Rocky gained popularity, the old guard like Jay Z upped the luxury ante to stay on top of the game. Now, designer denim with fit in mind is what most rappers look for, as opposed to the flashy back pockets that signified hip-hop's past denim obsession.