Iron Butterfly formed in 1965, over forty years ago, and were so big in their early years that Led Zeppelin opened for them in a show. This anomaly was corrected a year later, to the day, when Iron Butterfly opened for Led Zeppelin. Iron Butterfly did have an important role in the rock world of the day, and were even invited to perform at Woodstock, which they missed due to a managerial mistake. Most popular Iron Butterfly realtones listed: You Can't Win, It Must Be Love, Termination, Filled With Fear, Soul Experience, In The Crowds. Interesting fact - last downloaded ringtone: Free Flight to G-Plus G903 cell phone carried by Metrocall Wireless.