Alright, this is one of the songs on the new album "Tha Carter III"
the tab is basically just the bass guitar part...
i did it by ear so its not perfect and this is my first tab so here it goes...

so on the guitar its just the low E string...

e-----------------------------------------------------|
B-----------------------------------------------------|
G-----------------------------------------------------|     just keep repeating
D-----------------------------------------------------|
A-----------------------------------------------------|
E--4---4-7-9-12-11--9---12-11--9---9-7---7-9-3-4------|

and then the drums and Lil Wayne come in...