Lyrics:

[Space Ghost]
Look at me
I have a big head
My head is huge
What do you think, Zorak?
[Zorak]
Big head!
Big head!
Big fat head!
[Space Ghost]
I have a big head
I'm having a big head day
How's your big head day, kids?
[Zorak]
Big fat head day
[Space Ghost]
Shut up, bug
Space Ghost Big Head