question: Which singer has more talents, Kurt Cobain or Andy Biersack?
answer: Kurt Donald Cobain
context: Title: Andy Biersack
  Passage: Andrew Dennis Biersack (born December 26, 1990), formerly known as Andy Six, is an American singer and pianist.  He is the founder and lead vocalist for the American rock band Black Veil Brides, and is its only remaining original member.  In May 2014, he started a solo music project under the moniker Andy Black and released his debut album, "The Shadow Side", in 2016.
  Title: Last Days (2005 film)
  Passage: Last Days is a 2005 American drama film directed, produced and written by Gus Van Sant.  It is a fictionalized account of the last days of a musician, loosely based on Kurt Cobain.  It was released to theaters in the United States on July 22, 2005 and was produced by HBO.  The film stars Michael Pitt as the character Blake, based on Kurt Cobain.  Lukas Haas, Asia Argento, Scott Patrick Green and Thadeus A. Thomas also star in the film.  This is the first film from Picturehouse, a joint venture between Time Warner's New Line Cinema and HBO Films subsidiaries to release art house, independent, foreign, and documentary films.  The film received mixed reviews from critics.  Though meant to be based on Kurt Cobain, it contradicts the factual evidence of Cobain's final days.
  Title: Teen Spirit: The Tribute to Kurt Cobain
  Passage: Teen Spirit: The Tribute to Kurt Cobain is a documentary about Nirvana band leader Kurt Cobain.  Released in September 1996 it is significant as the first unofficial Kurt Cobain or Nirvana documentary to be available as a home video.
  Title: Kurt Cobain
  Passage: Kurt Donald Cobain (February 20, 1967 – April 5, 1994) was an American musician, artist, singer, songwriter, guitarist and poet.  Born in Aberdeen, Washington, Cobain formed the band Nirvana with Krist Novoselic in 1987 and established it as part of the Seattle music scene and grunge genre.  Nirvana's debut album "Bleach" was released on the independent record label Sub Pop in 1989.
citations: Andy Biersack Kurt Cobain