I've got a funny feeling this is the case too. Although why he'd do such a thing is beyond me. It's not like he's washed-up or anything.

From some of the videos, the first thing that springs to mind is that he's in the middle of a manic episode. His actions and words are symptomatic of mania, and this probably hasn't been helped by all the crack and coke he's been smashing. Notice this has come on fairly suddenly, in the past month or two. I'd like to bet that in a further month he'll either be back to normal, or will be experiencing major depression. He reminds me of a much more extreme version of me when I'm "up" - agitated, full of ideas tumbling over themselves to get out of his brain, delusions of grandiour and of a sense of being special, being utterly convinced everything's going to be wonderful because he's the most amazing person in the world.

Been there. It'll pass.