Frank Klepacki I think. He's done a lot of the generic Metal stuff for Zuffa unless they have someone new
This. It's Klepacki stuff specifically made for Zuffa. Don't know the name of the track, if it even has one.
They actually hired someone to write this bullshit? I had to start muting the events on UFC because of the two shitty songs they replace all the walk out songs with. Dana White needs to realize its not 2002 anymore, and nu metal is fucking dead.