Dan Steinberg, AP
"Never done any drugs -- I'm a control freak. For me I'm so scattered all the time without any drugs, my brain is always going different places, so I worry about where I'd find myself, which alleyway I'd wake up naked in." -- Josh Groban
Singer-songwriter Josh Groban tells talk-show host Piers Morgan that he doesn't mess with chemicals. His eccentric brain keeps him entertained enough. Plus, you never know when you have to fly out a sweetheart on a romantic whim.