There is of course the '27' club (ie; stars who died aged 27 - some of whom have already been mentioned).
Kurt Cobain (suicide by shotgun)
Jim Morrison (heart failure)
Amy Whinehouse (alcohol poisoning)
Jimi Hendrix (asphyxiation)
Brian Jones (drowned)
Janis Joplin (overdose)
Jonathan Brandis (hanged)
Pete De Freitas (drummer Echo and the Bunnymen) - (motorcycle crash)
Also, slightly older, Ricky Wilson original guitarist with The B-52s and brother of their singer Cindy Wilson (died aged 32 of AIDS).