. >> this man's stage name is ben harper.hing closely. >> i'll joke around with the guys from time to time but they usually know when i mean business. >> right now, a three-round battle. all freestyle from the top of the dome. anything goes. you know what i mean? first round, whoever wants to take it, can take it. who wants to go first? >> you. >> you can go first. >> go. ♪ you the human body i'm chemo cancer ♪ ♪ before you start to ask questions i'm already giving answers ♪ ♪ [ bleep ] coming out the closet ♪ ♪ i'm gone that get you right. they call me ♪ >> we want to talk about coming out the closet? ♪ hold up dog let's stop for a second ♪ ♪ listen to what rok got to say ♪ ♪ it doesn't matter because i'm so damn sick you can call me gang green ♪ ♪ i'm creeping through your mind i'll take you out ♪ ♪ i'm doing it silently ♪ put coffee over it to cover up all the funk ♪ >> officers keep a close eye to make sure things don't escalate. >> round three right now, man. come on. ♪ i stack cash >> during the battle rap i was standin