Tabbed by Jon 

Main Part:
|---------------------------------|
|---------------------------------|
|-2----5--7--6--7--6--5-----------|
|-3----6--8--6--8--7--6-----------|
|-3----6--8--6--8--7--6-----------|
|-1----4--6--4--6--5--4-----------|
  ^
Strum

Part that shifts up:
|---------------------------------|
|-3----6--8--6--8--7--6-----------|
|-3----6--8--6--8--7--6-----------|
|-3----6--8--6--8--7--6-----------|
|-1----4--6--4--6--5--4-----------|
|---------------------------------|
  ^
Strum