Song: Blah Blah Blah
Artist: The Cardigans
Album: First Band on the Moon

Basically it sounds like 2 guitars that play the same thing in different octaves. 
I tabbed the lower one.

Intro:
G|----------------------------------------------2---0-4-0h1-4-1-|
D|-------------2---/4-7-/4-7-/4-x---3---4-3-3h4-----------------|
A|-2---4-2-2h4--------------------------------------------------| x2
E|--------------------------------------------------------------|

D|-------------2-----------------2-|
A|-2---4-2-2h4-----2---4-4-2-2h4---| x2
E|---------------------------------|
Verse 1:
D|-------------2-----------------2-|
A|-2---4-2-2h4-----2---4-4-2-2h4---| x3
E|---------------------------------|

G|-------------2-----------------2-----------------|
D|-3---4-3-3h4-----3---4-4-3-3h4---------------2---|
A|---------------------------------2---4-2-2h4---2-|
E|-------------------------------------------------|

Bridge:
G|----------------------------------------------2---0-4-0h1-4-1-|
D|-------------2---/4-7-/4-7-/4-x---3---4-3-3h4-----------------|
A|-2---4-2-2h4--------------------------------------------------|
E|--------------------------------------------------------------|
Verse 2:

D|-------------2-----------------2-|
A|-2---4-2-2h4-----2---4-4-2-2h4---| x3
E|---------------------------------|

G|-------------2-----------------2---0-4-0h1-4-1---0-4-0h1-4-1-|
D|-3---4-3-3h4-----3---4-4-3-3h4-------------------------------|
A|-------------------------------------------------------------|
E|-------------------------------------------------------------|

Chorus:
G|----------------------------------------------2---0-4-0h1-4-1-|
D|-------------2---/4-7-/4-7-/4-x---3---4-3-3h4-----------------|
A|-2---4-2-2h4--------------------------------------------------| x4
E|--------------------------------------------------------------|

Enjoy!