"The people you would have overdose on drugs never would. Like Mötley Crüe would never overdose, man, never. You could put them in a room with two tons of crack, they'd come out half an hour later, goin 'ROCK ON MAN!'" - Dennis Leary
Actually, I'm pretty sure Motley Crue's bassist, Nikki Sixx, did overdose on drugs and was technically dead for a few minutes. He was resuscitated and managed to get out of the hospital fairly quickly - of course he immediately went back to shooting heroin again.
Still, Motley Crue and lot of those 80's glam metal bands are still touring and making music. Many of them have held up remarkably well and are still huge concert draws.