Sometimes occurring in a nightclub, but any large auditorium will do the trick. A sexy female singer, singing a song to a bunch of soldiers/sailors/airmen who are a long way from home and their significant others. Her outfit will be sexy, but not too revealing, possibly in red. If the main male characters of the story aren't in attendance, they will likely be in the middle of battle, with her songs providing the background music, and scenes switching between her performance and the heroes fighting.