Kanye West "Bound 2" (live on 'Fallon')

Kanye West 'Bound 2' (live on 'Fallon')
Having recently announced a tour, Kanye West continues to offer surprise promotions for his Yeezus album. Yesterday (September 9), that included an impromptu live appearance on Late Night with Jimmy Fallon.

It all started in the afternoon, when Fallon tweeted "Cool thing about doing a show in NYC — anyone can drop by. @KanyeWest surprised us and performed "Bound 2" tonight on Late Night! #nojoke."

Questlove was similarly excited, writing, "Tonight's @LateNightJimmy was pretty amazingly historic....& 10 years overdue. #Bucketlist #Jerome #InTheHouse #WatchYaMowf #DVRtime #Euweee."

With the Roots as his backing band and live vocals from his guest Charlie Wilson along with a children's choir, Yeezy launched into an impassioned rendition of the Yeezus closer. As could be expected, it had everyone from the crowd to the cast to Jimmy Fallon himself grinning with glee, even if Kanye did drop a diss on Kim Kardashian's former boyfriend Ray J, calling him "Brandy's little sister."

Watch Kanye perform "Bound 2" on Fallon below.