What is it about rock stars and the age of 27?

I think one common denominator is drugs. I believe everyone of them were involoved heavily with drugs. I was just reading the latest details in the Amy Winehouse's deat at a href="http://www.awithadam.com/2011/07/latest-detail-on-amy-winehouses-death.html" rel="nofollow"http://www.awithadam.com/2011/07/l…/a it's seemed kinda sad and lonely.