Well i've seen the chords and tabs posted on this website and i think they all 
are'nt 100 % accurate, so i figured out the chords and i think they are ALL right :)
Enjoy, Florian Jenewein

In the verses you can see the B and E chords.
You can play them like this:

   1 & 2 & 3 &
e|-2-------2--
B|-4-------4--
G|-4-------4--
D|-4-------4--
A|-2-------2--
E|-2-------2--

 4 &   1 & 2 &
-2---|-2------
-4---|-4------
-4---|-4------
-4---|-4------
-2---|-2------
-2---|-2------

 3 & 4 &   1 &
-2-2-2-x-|-0--
-4-5-4-x-|-0--
-4-4-4-4-|-1--
-4-4-4-4-|-2--
-2-2-2-2-|-2--
-2-2-2-2-|-0--

 2 & 3 & 4 &  
-------------|
-------------|
-------------|
-------------|
-------------|
-------------|

 1 & 2 & 3 & 4
---0----------
--0-----------
-1------------
--------------
--------------
--------------

 &
---|
---|
---|
---|
---|
---|

----------------------------------------------------------------------------

ROBBIE WILLIAMS COME UNDONE


[Verse 1]
             
So unimpressed

        
 but so in awe

Such a saint b

ut such a whor

e

So self aware 

so full of s**

t

So indecisive 

so adamant

[Bridge]
            
I'm contemplat

              
ing thinking a

     
bout thinking
            
It's overrated

              
 just get anot

             
her drink and

Watch me come 

undone

[Chorus]
             
They're sellin

              
g razor blades

      
 and mirrors i

n the street
             
I pray that wh

              
en I'm coming 

 
down you'll be

 asleep
             
If I ever hurt

            
 you your reve

nge will be so

 sweet
            
Because I'm sc

             
um, and I'm yo

   
ur son
             
I come undone

   
             
I come undone

   

[Verse 2]

So rock and ro

ll, so corpora

te suit

So damn ugly, 

so damn cute

So well-traine

d, so animal

So need your l

ove, so f**k y

ou all
          
I'm not scared

 of dying 
              
I just don't w

 
ant to
             
If I´d stop ly

#             
ing I'd just d

     
isappoint you

I come undone

[Chorus]
             
They're sellin

              
g razor blades

      
 and mirrors i

n the street
             
I pray that wh

              
en I'm coming 

 
down you'll be

 asleep
             
If I ever hurt

            
 you your reve

nge will be so

 sweet
            
Because I'm sc

             
um, and I'm yo

   
ur son
         
I come undone

[Break]

So write anoth

er ballad, mix

 it on a Wedne

sday

Sell it on a T

hursday, buy a

 yacht by Satu

rday

It's a love so

ng, a love son

g

Do another int

erview, sing a

 bunch of lies

Tell about cel

ebrities that 

I despise
         
We sing love s

ongs, we sing 

love songs
            
So sincere ooh

   
hh
            
So sincere

   

[Chorus]
             
They're sellin

              
g razor blades

      
 and mirrors i

n the street
             
I pray that wh

              
en I'm coming 

 
down you'll be

 asleep
             
A young preten

             
der and my cro

wds above can 

see
           
I come undone,

             
 I am scum, lo

               
ve your son

[Outro]
              
You gotta love

                
 your son
              
Gotta love you

            
r son
             
Yeah yeah yeah

     
 eh eh
           
Love your son
       
I am scum
       
I am scum
       
I am scum


[Fade out with alternating E & B]