In Call of Duty: Black Ops 6 Liberty Falls hides a unique music Easter egg for Zombies mode. Scattered around Liberty Falls are three sets of headphones linked to music players. Interacting with all three will trigger a hidden rock music track, adding an energetic soundtrack as you fend off waves of Zombies. If you’re up for some classic 2000s rock vibes while battling the undead, here’s how to find and activate each music player.
Call of Duty Black Ops 6 Liberty Falls Music Easter Egg Guide

These music players don’t display a prompt when you’re near them, so to activate each one, approach closely and press your interact/reload button. You’ll know it’s activated when the music stops playing from the headphones.
COD Black Ops 6 Fuller's Liberty Lanes Location
After clearing the Motor Lodge barrier (1,500 Essence), head upstairs and take an immediate right. Look down by the fence and platform railing, where you’ll find a pair of headphones on the ground.

COD Black Ops 6 Dark Aether Location
Head towards the Church in the Forecourt and unlock the door covered by a Dimensional Membrane (2,250 Essence). Go through the portal into the Dark Aether, and you’ll find another set of headphones resting on a wooden bench.

COD Black Ops 6 Washington Ave Location
In the Washington Ave area, locate the barrier blocking the stairs leading down to Olly's Comics. Near the top of the stairs, look underneath a wooden bench along the wrought iron fence, and you’ll spot the final pair of headphones.

Activating all three music players will cue a nostalgic rock track, bringing an Evanescence-like sound that perfectly complements your Zombie-slaying session.