Mosh Pit Like Wrestlemania

You know what would be a super cool idea: Ultimate Fighting meets Wrestle Mania except the competitors would have to fight to the song or songs of a band.  It would essentially be formalized slam dancing.  For example, traditional fighting puts one fighter against another, but in a pit with my idea we could have 100 fighters all in the same ring and set it to live music.  Fighters/Moshers would get paid, but probably not a huge amount.  The question is: How to determine a winner, or even if a winner should be determined, meaning agreement to dance would be the reason that you were paid, and for more valuable players, if we were to see them in the pit, negotiations could be made.