During the beginning he's singing burianza. I also hear negra (black in spanish) somewhere. But the rest I don't quite understand. maybe someone should ask him on twitter.
I was checking out some threads in other places (
http://www.ayumi-hamasaki.net/forumv...p?f=3&p=266101) where the ending chant includes such things as adios, al final, auf wiedersehen, among other things meaning goodbye.