title: Evolution: The Best of Iron Butterfly
text: # Evolution: The Best of Iron Butterfly
  
  Evolution: The Best of Iron Butterfly is the fifth and first greatest hits album released in 1971 by American rock band Iron Butterfly. Songs come from four of their albums: Heavy, In-A-Gadda-Da-Vida, Ball and Metamorphosis.
  
  ## Track listing
  
  ### Side one
  
  * "Iron Butterfly Theme" (Doug Ingle) – 4:34
  * "Possession" (Ingle) – 2:41
  * "Unconscious Power" (Ingle, Danny Weis, Ron Bushy) – 2:29
  * "Flowers and Beads" (Ingle) - 3:05
  * "Termination" (Eric Brann, Lee Dorman) - 2:50
  * "In-A-Gadda-Da-Vida" (45 RPM single edit) (Ingle) – 3:10
  
  ### Side two
  
  * "Soul Experience" (Ingle, Bushy, Brann, Dorman) – 2:50
  * "Stone Believer" (Ingle, Bushy, Dorman) – 5:20
  * "Belda-Beast" (Brann) – 5:46
  * "Easy Rider (Let the Wind Pay the Way)" (Ingle, Bushy, Dorman, Robert Woods Edmonson) – 3:06
  * "Slower Than Guns" (Ingle, Bushy, Dorman, Edmonson) – 3:37
  
  ## Charts
  
  | Chart (1972) | Peak position |
  | - | - |
  | Australia (Kent Music Report) | 37 |
  
  ## Band members
  
  * Doug Ingle – lead vocals (except where indicated), organs
  * Ron Bushy – drums
  * Jerry Penrod – bass on side 1 tracks 1–3
  * Darryl DeLoach – tambourine and backing vocals on side 1 tracks 1–3
  * Danny Weis – guitars on side 1 tracks 1–3
  * Erik Brann – guitars on side 1 tracks 4–6 and side 2 tracks 1 and 3, lead vocals on "Termination" and "Belda-Beast"
  * Lee Dorman – bass and backing vocals on side 1 tracks 4–6 and side 2 all tracks
  * Mike Pinera – guitar on side 2 tracks 2, 4 and 5, additional lead vocal on "Stone Believer"
  * Larry "Rhino" Reinhardt – guitar on side 2 tracks 2, 4 and 5
  