When Desmond enters the Looking Glass, Charlie warns him to hide. Greta and Bonnie, hearing his orders for Desmond to hide, walk out of the radio control room into the moon pool room. However, when they enter, Charlie is singing to hide his talking. In the belief that somebody else was in the room, they search the area, but fail to find him hiding in a nearby locker.
The title references weapons of mass destruction. Charlie sings to distract his captors.