(they may not be exact, but here is what i got from listening to the song part by part)

I'm livin here on the third speck from the sun
I think its about time i own world has begone
A place where my mind has all the color that it needs
A place where my tripy life just belongs to me

I want my own planet
The human race i can't stand it
I want my own planet
Cuz this one here is a drag

Ain't talking about no Hitler kind of trip
Just want a place where things can be just as they wish
If you can't dig all these things i have to say
Your gonna blow up this whole planet anyway

And that's why

I want my own planet

The human race i can't stand it
I want my own planet
Cuz this one here is a drag

(solo)
I want my own planet
The human race i can't stand it
I want my own planet
Cuz this one here is a drag

Want my own

I want my own planet
The human race i can't stand it
I want my own planet
Cuz this one here is a drag