Babe, here is a good link, pretty well covers the "members".
http://en.wikipedia.org/wiki/27_Club
The big four that everybody always mentions, Janis Joplin, Jimi Hendrix, Jim Morrison, and Curt Corbin, were all industrial strength substance abusers. Maybe the point is if a human starts consuming large quantities of drugs and alchohol at about age 18, they have about 9 years left.
There is a lot of speculation that Amy Winehouse figured she would never make 30, so why not go out and become immortal in a slect club of dead junkies.