Famous musician death conspiracy theory??

Question

Okay, before you say anything, yes, I do have way too much time on my hands but it's 1 am and I can't sleep.

I just realised that 4 famous musicians died:

Brian Jones (Rolling Stones) 3 july 69

Jimi Hendrix 18 sep 70

Janis Joplin 4 oct 70

Jim Morrison (the Doors) 3 july 71

They were ALL aged 27

They died over the space of EXACTLY 2 years, to the day

They ALL died of an overdose and/or "suspicious circumstances"

Anyone know of any conspiracy theories related to any of this? Is it just a coincidence?

Answer 1

Theres conspiracy theories for the death of Tupac Shakur, and it also involves numbers and a bunch of other c**p.  

Answer 2

Coincidence I guess. Kurt Cobain was 27 too.