Simple Plan - 1 Trevin Is Cool Tabs

l---------------------------------------------------------
l---------------------------------------------------------
l---------------------------------------------------------
l-3--------4-------------2--3--------------4-4---------5--
l----3--4------------3-----------2------------------------
l-----4-3-------2---------------------1------------2------

l---------------------------------3-------------2----------4
l-2-------------------------------------------------2-------
l----4-----------------------------------------------------4
l-----------------------------------------------------------
l------------2-------------------3---------------1--------2-
l---------1------------2---3-------------2------------3-----

This is basically what they do the whole song. It is dropped 
two and a half steps down. Yo may need to listnen to the song 
a few times to get the timing down. it is a somewhat rare song
but if you look for it, you should find it.