I didnt catch all of Jay-Z performing, but my friend sent me this clip of something I missed, and I love this song with Kid Cudi, it made me change my mind on not buying Blueprint 3. Enjoy
"Already Home" + "Heart Of The City" + John Mayor on Guitar on D.O.A
Sidebar: Cudi was looking super happy performing, which made me smile because his music is pretty dark, peep him giving a shoot out to his haters on his twittter. Click the image to enlarge.