Turret Opera

From the Portal Wiki

The Turret Opera appears at the end of the single player storyline for Portal 2. It consists of a large variety of Turrets. Instead of harming the player, they appear in the game to form an unique melody with the Fat Turret as their lead singer.

The Turret Opera, as seen at the end of the game.
Mia bambina, oh ciel
Fat Turret

Trivia

  • 4 Turrets and a Fat Turret can be seen rehearsing for the performance in a hidden area in Test Chamber 16.
  • The Weighted Companion Cube from Portal can be seen flowing upwards through the tubes in the background as the lift rises.