Song is Beast Mode ON Rap by TEAMHEADKICK
http://www.youtube.com/user/teamheadkick/videos?flow=grid&view=0
Halo 4 Dubstep Rap - Beast Mode On - TEAMHEADKICK
https://www.youtube.com/watch?v=bI23230Xqe0
TEAMHEADKICK's Song
https://www.youtube.com/watch?v=pYVu6vnglxw
FLCL amv.