Single Ladies Tab

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Marmaduke Duke on Radio 1's live lounge covering Beyonce's Single ladies

Thought the main guitar part for this song sounded rpetty simple so attempted my first 
tab :) this is how i thought it went

Main Riff - played most of the way through the song, listen to the track on youtube for 
exact timing.

e|-----x-----x-----x------------||
B|-----x-----x-----x------------||
G|-----x-----x-----x------------||
D|--5--x--5--x--5--x--5--5------||
A|--5--x--5--x--5--x--5--5------||
E|--3--x--3--x--5--x--3--3------||

Then theres a bit (chorus?) where the chords change, and there is a single strike on the 
(each strike lasting 1 bar)
  ________________________
 (          x2            )  x4
e|--10--|--7--|--5--|--7--|--10--|
B|--10--|--7--|--5--|--7--|--10--|
G|--10--|--7--|--5--|--7--|--10--|
D|--10--|--7--|--5--|--7--|--10--|
A|--12--|--5--|--3--|--5--|--12--|
E|--10--|--7--|--5--|--7--|--10--|

If it not spot on i hope its a starting point for anyone =)

youtube video - http://www.youtube.com/watch?v=zTpKQGmQEOc&feature=related