Nope haven't seen it yet but it appears the best entertainment was back stage: Tommy Lee and Kid Rock, both former husbands of model Pamela Anderson, got into a fight while Alicia Keys was performing.

"There were no fists, they were just holding each other, grabbing each other," Tom Higginson, singer of the pop band Plain White Ts, told Reuters. "Security had to break them up."

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….