You are in a mall when the zombies attack. You have:
1. one weapon.
2. one song blasting on the speakers.
3. one famous person to fight alongside you.
Weapon can be real or fictional, you may assume endless ammo if applicable. Person can be real or fictional.
1 - A chain gun with a bunch of ammo
2 - A good mix of Flogging Molly's more aggressive tunes
3 - Either Sergeant Mac Eliot, with his weapon of choice, or Pvt. Vasquez, with her weapon of choice