Lithium
Nirvana

First Pre-Chorus
G--------------------------------------------------------
D-------------------7-7-7---5--5--5--7--7--7-------------
A-------------4--4--------7------------------2-2-2--5-5-5 
E-0---0-4---4-------------------------------------------- x3

2nd & 3rd Verses

G--------------------------------------------------------
D----------------------5--5-7-7--------------------------
A--7--7-6--6-4--4----------------2-2-2-5-5-5-------------
E-----------------5--5----------------------------------- x3

G----------------------------------------------------------
D----------------------------------5--------7--------------
A--7--7-6--6-4--4--3--0--0----3-3----3--5-5---5-2-2-2-5-5-5
E---------------------------------------------------------- 

First Pre-Chorus x3

Chorus

G---------------------------------------------------------
D------------------------5--7--7-7-5---5------------------
A--------3--3------3/5/7-------------7---7--7/6/5-0-3-0-3-5
E-5--5-5------5--5----------------------------------------- x3

That's about it!