Jerome John "Jerry" Garcia (August 1, 1942 – August 9, 1995) was a musician, songwriter, artist, and lead guitarist and vocalist of the psychedelic rock band the Grateful Dead. Though he vehemently disavowed the role, Garcia was viewed by many as the leader or "spokesman" of the group.

from CBSNews.com
Garcia became a vegetarian, began working out and smoking less, but despite the changes, he died two years later.