Rihanna - Ready chords

Ready by Rihanna ft. Lady Gaga
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The song is in key G sharp minor (G#m)

The chords are:

(G sharp minor, B major, E major, C sharp minor and D sharp minor)

G#m, B, E, C#m and D#m


Chorus
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[ Tab from: http://www.guitaretab.com/r/rihanna/299634.html ]
I don't think your ready think your ready oh no but ima ready but ima ready 
G#m                                 B                   E, 

ima ready for sho [x2]  
    C#m      D#m


Verse
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i mean what can i say i'm cooler them cool not to be cocky you can learn if 
G#m                    B,                  E                        C#m 

you just watch me  i i i i
         D#m

And the song goes on and on with these chords.