Zombie attack meme

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.

What do you choose?

* Weapon can be real or fictional; you may assume endless ammo if applicable. Person can be real or fictional

1) Snake sword, made famous by Ivy from Soul Calibur. (Also wielded by Jean-Francois in Brotherhood of the Wolf and Renji in Bleach.) - I'm assuming these are the type of zombies who transform you with one bite. In that situation you want a weapon with both range and no need for ammunition.*

2) "Into the Lungs of Hell" by Megadeth.

3) Summer Glau; she can have the powers of either River Tam or Cameron the Cyborg. I'm not picky.

*Yes, I know they said I could have endless ammo. But "they" have also just dropped me in a mall full of zombies. I'm not so sure I'm ready to fully trust "them."

Writer's Block: Banished to Space.

[Error: unknown template qotd] I would be exiled to the heart of a Jupiter Brain. I would not need to bring anything since the brain's powerful virtual reality and replication technology would provide all my material needs and its massive database would give me access to every work, written or visual, ever created. Of course, word would get out that at the heart of the Jupiter Brain lay God, or the Devil, or the answer to everything, or some bullshit like that, only to have whoever fought their way to the center of it get stuck having Deep, Important, and ultimately boring philosophical conversations with li'l old me. Of course, they'll have to kill me and take my place as the brain's keeper. Or maybe I'll just conveniently die or commit voluntary euthenasia, forcing them to take my place. Either way, they're not getting out of that brain and they're going to get screwed by Irony! Cruel Irony!