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. Flechette Assault Rifle ala Honorverse (David Weber's Honor Harrington Series)
2. Oingo Boingo, Dead Man's Party.
3. "That Idiot" Ash from Army of Darkness. Hail to the King Baby.