Preparing for his “Yeezus tour” starting on Septmember 19th, Kanye West made a surprise appearance last night on Jimmy Fallon and performed “Bound 2” with The Roots, Charlie Wilson and a very cute group of background child singers. Starting the ode to Kim Kardashian with a clear jab at Ray-J, “Brandy little sister lame, and you know it now”, West went on to continue his live performance wearing a leather skirt. Seriously, can someone fill us in on what the skirt is all about?

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