Iron Butterfly ( B10 )

In 2001, after Dorman took ill, one of the band's road crew, Oly Larios, sat in on bass.

Guitarist/vocalist Charlie Marinkovich joined the band in 2002. Originally from Seattle, Marinkovich had played with Randy Hansen and others.

Original vocalist Darryl DeLoach (born on September 12, 1947) died of liver cancer on October 3, 2002 at the age of 55.

On July 25, 2003, Erik Brann died of heart failure at the age of 52.

Derek Hilland returned to play keyboards for the group's 2003 dates when Larry Rust was not available.

German violinist, keyboardist, and composer Martin Gerschwitz, who had formerly worked with Lita Ford, Meat Loaf, Walter Trout, and most recently Eric Burdon and The Animals, joined the band in 2005, replacing Larry Rust.

In early 2006, Rust came back briefly to substitute for Gerschwitz for dates in Italy, Croatia and Austria. Later that very same year, Ken Chalupnik and Dave Meros filled in for Dorman.

In early 2010, an announcement was made that Iron Butterfly would receive the Lifetime Achievement Award at the 20th Annual San Diego Music Awards, which took place on September 12, 2010. The award was presented by San Diego Mayor Jerry Sanders.Later the same year, Ray Weston (formerly of Wishbone Ash) came in to substitute on drums for Ron Bushy after he was sidelined by health issues.

In early 2012, Phil Parlapiano substituted for Martin Gerschwitz for a few shows when Gerschwitz was unable to play due to his own solo-tour schedule.

Deaths of Reinhardt and Dorman, and inactivity (2012–2014)

Former guitarist Larry "Rhino" Reinhardt died on January 2, 2012, at the age of 63, due to cirrhosis of the liver. 

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