Weird Al Yankovic

It's Christmas at ground zero
There's music in the air
The sleigh bells are ringing and the carolers are singing
While the air raid sirens blare
It's Christmas at ground zero
The button has been pressed
The radio just let us know that this is not a test
Everywhere the atom bombs are dropping
It's the end of all humanity
No more time for last minute shopping
It's time to meet your final destiny
It's Christmas at ground zero
There's panic in the crowd
We can trim the tree while we dodge debris
Underneath the mushroom cloud
INSTRUMENTAL INTERLUDE
You might hear some reindeer on your rooftop