title: Triangle (band)
text: # Triangle (band)
  
  Triangle (トライアングル, Toraianguru) was a Japanese pop group that formed and debuted in the late 1970s. They released their first single, Triangle Love Letter in mid 1978 and their last single, Koi wa Tekkiri Ba-Bi-Bu-Be-Bo in 1980. The group only released two albums, Triangle Love Letter and Sanjūsō / Triangle 2 in 1978 and 1979 respectively. Sony Music Entertainment released Triangle Single Collection in 2008.
  
  ## Members
  
  * Mitchi (Mori Mitsuko → Komori Michiko)
  * Mami (Mami → Ueno Mayumi Ueno)
  * Kūko (Ōtsuka Kuniko) left the group in 1979
  * Aki (Kei Aki Katō) joined the group in 1979
  
  ## Discography
  
  ### Singles
  
  * Triangle Love Letter (c/w "San Shoku no Niji") [1978.04.21]
  * 0 no Meruhen (c/w "Dreaming") [1978.07.21]
  * Captain Zap (c/w "Tatchi Auto")[1978.10.01]
  * Love Locomotion (c/w "Kokoro no Todokanu Love Letter") [1979]
  * Fuyu ga Chikai (c/w "Kyanpasu") [1979]
  * Honjitsu Seiten Nari! (c/w "Wet Boy")[1980]
  * Koi wa Tekkiri Ba.Bi.Bu.Be.Bo (c/w "Gyangu ga Machi ni Yatte kita") [1980.09.21]
  
  ### Albums
  
  * Triangle Love Letter
  * Sanjūsō / Triangle 2
  * Triangle Single Collection
  