These people don't really have jobs so why would you even try to ponder how much drugs they do?
Take a step back and think about (if you did go) when you were in college and how much wild shyt you did. Now consider that all they have to do is perform, make music, and make appearances that all result in millions of dollars.
Think about ALLLLLL the free time these people have to do nothing but drugs, fukk and chill.
Do ya'll know ANYTHING about musicians/ rock stars lives? There was enough coke done in the 80's to buy islands in the Caribbean TODAY.