Zombies!

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. The New Who Sonic Screwdriver which can apparently do anything. If not available, I will take a cricket bat, since I think I'd likely end up shooting my foot if I had a gun.

2. Zombie by the Cranberries. I kid, I kid. Ballroom Blitz was the first song I thought of, but then I figured that would get annoying after awhile, so I'm going with Beethoven's Fifth Symphony preferably the 1st and/or 3rd movement, if the whole thing isn't available).

3. John McClane. Or Jayne, if he gets to bring Vera. Or Yoda (yeah, I have a top three for this one).