Kanye West Disses Ray J During Surprise Performance On Jimmy Fallon

West made unannounced run through 'Bound 2' on Monday night's show, taking shots at 'Brandy's little sister.'

When Kanye West wants to pop in, you don’t say no.

And when he’s dropping by to perform the Yeezus track “Bound 2” with R&B legend Charlie Wilson, backed by the Roots, well, who could resist that? So when Jimmy Fallon tweeted “@kanyewest surprises Late Night and performs “Bound 2″ with @theroots and kills it,” on Monday night, you knew something special was in the offing.

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