Track 9 off of Avenged Sevenfold’s sixth studio album, Hail to the King. “Planets” comprises part one of a two part story that concludes the album. Said guitarist Synyster Gates of the song:

“Lyrically, Planets is the precursor to Acid Rain; it’s about a meteoric, intergalactic war that results in an apocalypse and the human species aligning together to go fight something much better than us, our individual trials and tribulations.

“Musically, the song was incredibly difficult to write and pull off – the elements of dissonance, tension and resolution. We wanted to have that friction throughout, but it still had to be palatable; it couldn’t be like listening to Penderecki or Stockhausen. There had to be a relatability and connectability to it."