This is not the exact way its supposed to be played, I'm just providing easier shapes
for beginners to learn.
[ Tab from: http://www.guitaretab.com/f/flo-rida/313965.html ]
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-66x--99x------------------------------------------------------|
-66x-999x--99x--77x--------------------------------------------|
-44x-7-7x-999x-777x--------------------------------------------|
----------7-7x-5-5x--------------------------------------------|
x=palm mute
you can also play the power chords straight through if you'd like without skipping
strings, i just prefer my way though because it sounds slightly better.