So I was looking at the tabs posted and while the chords are correct no one posted the 
right intro, which I think is the best part of the song. So this is what I figured out, 
and it sounds perfect to me.

Capo 3 (frets relative to capo)
*- slap strings with thumb

-----5----------5----------5------------------------|
-------5-3/5-7----5-3p2-3----5-3/5-7-----3h5-5-333--|
-----7-6-4/6-7--7-6-4p2-4--7-6-4/6-7--2h4------222--|
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      * *     *  * *   *  * * *     *