Dec. 21 - Lee Dorman

The former Iron Butterfly bassist passed away at the age of 70. He was found dead outside of his home in Orange County, Calif. The authorities do not suspect any foul play and Dorman reportedly suffered from heart problems. Dorman joined Iron Butterfly in late 1967, and played on "In-A-Gadda-Da-Vida," the 17-minute title track to the San Diego-based group's second album. The song went on to become Iron Butterfly's biggest hit and a classic rock radio staple.