"Battle Symphony" is a promotional single by American rock band Linkin Park. The song was recorded by the band for their seventh studio album, titled One More Light. The song appears on the album as the fourth track. The song was written by Linkin Park members Brad Delson and Mike Shinoda. The song was released on March 16, 2017, but it was leaked some days before. The title "Battle Symphony" was first seen in a picture posted on Joe Hahn's Instagram story on September 6 Read more on Last.fm.