Here it is
I finished it. It was fairly easy (if you listen to the original first it'll make more sense, not that I'm advocating downloading illegal music. *cough* right.)
Dungeon Master (to the tune of Opera Singer by Cake)
I am
A Dungeon Master
I make a world to shape
It tells my players what’s going
And why they end up too late
I call my
PC’s player
I call my
PC’s name
I play both good and evil parts
I DM till there in their graves
I every Saturday morning
By 10 am I’m dressed
My games will last for hours and hours
With diligence I have been blessed
Some people the call me monster
Some people they call me saint
My talent feeds my darker side
But no one will complain
I am a Dungeon Master
I DM many different lands
I’ve played as Elminster in Forgotten Realms
And emperors in Rokugen
And after
Each game night
Players stand around and wait
Just to tell me that they loved my game
Just to tell me it’s been great
I am a Dungeon Master
I’ll Dm till your all dead
I’ll see to the mountains fall apart
I’ll see what can’t be said
I am a Dungeon Master
I DM many different lands
Most Npc’s don’t know my name
Don’t even know who I am