e|-------0-----------0------------0-----------0----------------------| 
B|-------0-----------0------------1-----------0----------------------| 
G|-------0-----------0------------2-----------0----------------------| 
D|-------5-----------2------------2-----------1----------------------| 
A|-------7-----------3------------0-----------2----------------------| 
E|-------7-----------3------------0-----------2----------------------| 
Thats basically it... thats what Katy plays throughout the entire song 

GUITAR 2 - this is the short part the second guitar plays when it is live. But if ur  
use the recorded version, u would have to play along to the whistles(i dont think its the  
though).... 

GUITAR 2 (INTRO WHISTLES) 
e|------------------------------------------------------------------------| 
B|-------------12----------------------------------10-12------------------| 
G|-----9--12--------------------9-9-9-9--12-12-12-------------------------| 
D|--9-------------10-10-10-10---------------------------------------------| 
A|------------------------------------------------------------------------| 
E|------------------------------------------------------------------------| 

e|-------------------------------------------------------------------------| 
B|---------------------------------10-12----12h13p12----7h8p7-----8--------| 
G|----------------9-9-9-9-12-12-12--------------------------------9--------| 
D|---10-10-10-10--------------------------------------------------9--------| 
A|----------------------------------------------------------------7--------| 
E|-------------------------------------------------------------------------| 
*strum from the bottom to the top on the last note!