Well, yeah there are plenty of versions of this tab.
But I wanna post mine cause I believe that mine is the correctest.
I didn't tab this, a mate gave it too me
Lithium
Nirvana


INTRO
e-----------------------------------------------------------
B-----------------------------------------------------------
G-----------------------------------------------------------
D-----------------6--------7---55-777-77-0-44-777-77-0------
A----------6-----4--------7----33-555-55-0-22-555-55-0------
E--0-X-0-4---X-0----X-0-5----0------------------------------

1ST CHORUS (yeah,yeah,yeah-eah-eah)
e-----------------------------------------------------------
B-----------------------------------------------------------
G---------6-6--22-22--0-------------------------------------
D-2--6-6--6-6--22-22--0--55-777-77-0-44-777-77-0------------
A-2--6-6--4-4--00-00--0--33-555-55-0-22-555-55-0------------
E-0--4-4----------------------------------------------------

2ND CHORUS (I Like It....)
e----------------------------
B----------------------------
G-2-2--0--5-5-0--2-X--5------
D-2-2--0--5-5-0--2-X--5------
A-0-0--0--3-3-0--0-X--3------
E-----------------------0-3h4


PRE BASS SOLO
e---------------------------------------------
B---------------------------------------------
G---------6-6--22-22--0--55555555--44444------
D-2--6-6--6-6--22-22--0--55555555--44444------
A-2--6-6--4-4--00-00--0--33333333--22222------
E-0--4-4---------------------------------0-3b-

BASS SOLO (formatted for guitar)
e--------------------------------------------------
B--------------------------------------------------
G--------------------------------------------------
D--------------------------------------------------
A------------4--4---------8-8/10--10/2--2-2-5-5-5-5
E--7--7-6--6------5-3-5-5--------------------------

OUTRO
e----------------------------------------------
B----------------------------------------------
G---------6-6--22-22--0--55555555--44444-------
D-2--6-6--6-6--22-22--0--55555555--44444-------
A-2--6-6--4-4--00-00--0--33333333--22222-------
E-0--4-4---------------------------------0-3b-0
There ya go, that is my 100th tab, and I couldn't care less.
It's only my 3rd geetar tab though!
Tabbed by wilza's mate scott