Not on stage.

Probably heavy and constant use of cannabis. And I'd wager concerta or adderrall, effexor, and maybe something like clonidine or neudexta to get those CY450 inhibition effects.

I think he's probably mostly grapefruit juice my now. World's wealthiest citrus.

Edited: Easily bipolar. Probably not medicated for it because he likes the happys and not the stables. He could probably do some valproate or lithium. But he's gotta get that fancy lithium carbonate from Ukraine.