C Dm7
--------------------------------------5---------------|
-----5---5-----5h6p5----------6---6h8---8p6-----6-----|
-----------5---------5------------5---------5h7---7---|
---5---5-----5---------5----7---7---------------------|
-3------------------------5---------------------------|
------------------------------------------------------|
[ Tab from: http://www.guitaretab.com/r/rihanna/303171.html ]
C F Am
-----------------------------------------------------0------|
-----5---5h6p5------5-------------10---------------1---1----|
-------5-------5------5--------10----10----------2-------2--|
---5-------------5------5---10----------10-----2----------2-|
-3------------------------8----------------8-0--------------|
------------------------------------------------------------|
C Dm C/E F x2 Am
----------------|----0---|
--5--6--5---10--|----1---|
--5--7--5---10--|----2---|
--5--7--5---10--|----2---|
--3--5--7---8---|----0---|
----------------|--------|
Then it repeats with more or less the same with variations on
picking patterns etc... (:
Enjoy!