Invisible (Tab)
The song is very simple, just E A and G in the Chorus 

The bass line is(more or less): for the verse: 
 
G  |  ------------------------------------------  |   
D  |  ------------------------------------------  |   
A  |  ------------------------------------------  |   
E-0-0-0-0-0-0-0-3-3-4-5-5-5-5-5-5-5-4-3-3--  |   
 
                                for the Chorus: 
 
G  |  ------------------------------------------  |   
D  |  ------------------------------------------  |   
A  |  ------------------------------------------  |   
E-0-0-0-0-0-3-3-3-3-3-5-5-5-5-5-0-0-0-0-0--  |   
 
VERSE 1: 
E 
I'm on it, get on it, The troops are on fire! 
         A 
Ya know I need it, much closer  

I'm trading (or treading) just a little more 
    E 
Step on it, electronic  

The troops are on fire! 
         A 
I'm much deeper, a sleeper 
                          E 
Waiting for the final trip  

{little piano solo on E chord} 

VERSE 2: 
E 
Come on it, get on it 

I'm carving thru a letterbomb 
   A 
I need it, like potions 
                                 E 
These drugs are just an hour away  

Come on it, electronic 
                              A 
A polyphonic prostitute, the motor's on fire  

Messiah for the animals 
E      A 
Ahhhh, Ahhhh 
 
Chorus: 
E                G 
Ah, oh come on! 
A                             E 
 We got our backs to the wall! 
E                   G 
Get on! And watch out! 
        A                       E 
 Sayin, "Yer gonna kill us all!" 
 
{Little piano interlude again} 

REPEAT VERSE 1 
 
Chorus 2: 
E                G 
Ah, oh come on! 
     A                             E 
Said  We got our backs to the wall! 
E                   G 
Get on! And watch out! 
      A                       E 
Uh! Before you kill us all!" 
{Chorus 2 again} 
 
Then to finish theres the Chorus but without the singing just Ahhhh Ahhh-ing