THIS IS NOT MY TAB!!! I USED THE TAB FROM Niallakokovich!!!
(Thanks mate!) The link to that tab is: 
http://tabs.ultimate-guitar.com/a/alestorm/keelhauled_crd.htm
The only thing I did was adding a Capo which makes it easyer to play for me.

Capo: 1st fret
Tuning: standard

Intro: Am Am Am Am G [x2]

After violin starts: Am Am C G

Repeat this a few times and then when there is a sort of stop just before where
the guitar comes in play F instead of Ab

Then repeat the phrase a few more times

AmMy (x02210@1)friends I stand before you
   CTo (x32010@1)tell a truth most dire
      G (320003@1)             F#There (244322@1)lurks a traitor in our midsts
    EWho (022100@1)has invoked the captain's ire
   AmHe (x02210@1)don't deserve no mercy
   CWe (x32010@1)ought to shoot him with a gun
    G (320003@1)         F#But (244322@1)I am not an evil man
   ESo (022100@1)first lets have a little fun

Am (x02210@1)                            GWe'll (320003@1)tie that scoundrel to a rope and throw him overboard
F#Drag (244322@1)him underneath the ship
  EA (022100@1)terrifying deadly trip

Am (x02210@1)          F#Keelhaul (244322@1)that filthy landlubber
G (320003@1)                   CSend (x32010@1)him down to the depths below
Am (x02210@1)               F#Make (244322@1)that bastard walk the plank
       C (x32010@1)    G (320003@1) Eb(1)  C(2 (x32010@1)fr.)      AA(3) (x02220@1)A(this (x02220@1)line is only single notes)
With a bottle of rum and a yo ho ho

AmI (x02210@1)will not say what he has done
    CHis (x32010@1)sins are far too grave to tell
     G (320003@1)             F#It's (244322@1)not my place to judge a man
    EBut (022100@1)for them he will burn in hell
    AmThe (x02210@1)sharks will dine upon his flesh
    CAnd (x32010@1)Davy Jones will have his soul
G (320003@1)             F#Take (244322@1)his money and his hat
         EHe (022100@1)won't need them where he's gonna go

B (x2444x@1)                            GBut (320003@1)first lets tie him to a rope and throw him overboard
FDrag (133211@1)him underneath the ship
  EA (022100@1)terrifying deadly trip

Am (x02210@1)           F#Keelhaul (244322@1)that filthy landlubber
G (320003@1)                   CSend (x32010@1)him down to the depths below
Am (x02210@1)               F#Make (244322@1)that bastard walk the plank
       C (x32010@1)    G (320003@1) Eb(1)  C(2 (x32010@1)fr.)     AA(3) (x02220@1)A(this (x02220@1)line is only single notes)
With a bottle of rum and a yo ho ho

(1) = Eb on the 3rd fret
(2) = C on the 3rd fret
(3) = A on the 2nd fret

Please mail me at the_black_dragon@live.nl if you have any suggestions or something. AND 
AGAIN!! I DID NOT MAKE THIS, I ONLY MADE IT EASYER!! PLEASE THANK Niallakokovich FIRST, 
AND THEN ME (if you want ^^)

Enjoy playing!