Kanye West premieres new material at Facebook HQ

Kanye West has posted a couple of clips that show him debuting new material in the unlikely setting of Facebook HQ. Wearing an dashing suit and standing on a table, West delivered a capella versions of Lost in the World/Chain Gang (above) and Mama's Boyfriend (below) to a room full of cheering Facebook employees. "Many times in my life I've had to deal with moments of doubt," West wrote on his blog, Kanyeuniversity.com , about the performance. "Your energy was a gift so electric, so genuine, that it really helped me give my best." One question: why Facebook?