title: Star Train
text: # Star Train
  
  "Star Train" is a single by Japanese trio Perfume, released in Japan on October 28, 2015. It is the fourth single from their fifth studio album Cosmic Explorer.
  
  "Star Train" was used as the title track of Perfume's own documentary, titled WE ARE Perfume -WORLD TOUR 3rd DOCUMENT, released in both Japan and the US on October 31, 2015.
  
  ## Background
  
  Star Train was released to celebrate their 15 anniversary since their formation. The single was released in 2 separate discs, a CD+DVD Limited Edition and a regular version CD. One of the B-side of the single, "Imitation World" was only included in the limited version. A music video of the song was included in the DVD.
  
  ## Track listings
  
  All tracks are written by Yasutaka Nakata. Lyrics for "Imitation World" originally written by Emi Kinoko but credited to Nakata.
  
  All tracks are written by Yasutaka Nakata.
  
  ## Certifications
  
  | Region | Certification | Certified units/sales |
  | - | - | - |
  | Japan (RIAJ) | Gold | $100,000^^$ |
  | $^^$ Shipments figures based on certification alone. |||
  