"Life Is Hard for the Walking Dead" as performed by a talented bunch of zombies:

And here's a related scene that, like the one above, gets better as it goes along:

The film this comes from is a zombie comedy called Whoop Ass: Can of the Dead, which can be seen on YouTube for free thanks to the generosity of the filmmakers. The music is "Tunak Tunak Tun" by Punjabi singer Daler Mehndi.