Also rewatching that vid, Omarion was right in his post about Mario's soundman intentionally messing him up.
At 4:55, Omarion is like "I can't hear nothing with him in my ear"
And Mario tells his soundman, "No, keep me in his ear, keep me in his ear".
So that means that all throughout O's performances when Mario kept cutting in talking and saying stupid stuff, he was doing it on purpose trying to derail O's performance. Not saying that Omarion was gonna give a great performance either way... but I am saying that that's some snake clown stuff right there, and O was right on that part in his post when he brought that up in his post below and said "and yes there will be a sound check that date and this time we won't use your front of house sound man."