Pretty well the whole song is D# / D# / G# / A#.
It's played with two guitars, with variations on those chords
throughout. Here's what I think the most common forms are.

"Heartbreaker"
The Walkmen
from: "Heaven" (2012)

Gtr. 1
e|---------------------------|
B|-11--------4-------6-------|
G|-12-(x16)--5-(x8)--7-(x8)--|
D|-13--------6-------8-------|
A|---------------------------|
E|---------------------------|

Gtr. 2
e|---------------------------|
B|-8--------4-------6--------|
G|-8--------5-------7--------|
D|-8-(x16)--6-(x8)--8-(x8)---|
A|-6--------6-------8--------|
E|---------------------------|

Gtr.1 Riff
e|-------------------------|
B|-------------------------|
G|-8--8-8--8----8--8-8--10-|
D|-------------------------|
A|-------------------------|
E|-------------------------|  then,

e|---------------------------|
B|-8-------------------------|
G|---10----8-8-----7/5---5/3-|
D|---------------------------|
A|---------------------------|
E|---------------------------|

Bridge
("you know I'm hopeless...")
e|-6---7---9---10--11--|
B|-8---9---11--12--13--|
G|-7---8---10--11--12--|
D|---------------------|
A|---------------------| these chords are all played tremolo
E|---------------------|

Outro
e|-------------------------------|------|
B|-------------------------------|------|
G|-8--8-8--8----8--8-8--8--------|---8--|
D|--------------------------(x2)-|------|
A|-------------------------------|------|
E|-------------------------------|------|