Chris Brown Argues With Fan at Charity Hoops Game; Sits During National Anthem.

*Chris Brown was in rare form on Sunday during a charity basketball game on the campus of USC.

According to TMZ, Breezy got into “a heated, prolonged argument with someone in the stands … intense enough for cops to get involved.”

It all went down at the Power 106 Celebrity Basketball Game. At some point, he became visibly upset, but it was difficult to figure out why because the music was too loud, TMZ noted. One of the USC officers, however, was overhead saying, “I don’t care who’s here, get it straight.”

Watch below:

Brown also refused to stand during R&B singer Tank’s performance of the National Anthem. TMZ reported: “He didn’t kneel … he sat. And he was anything but solemn … yukking it up.”