This is the tab for the rhythm/backup guitar.

Tuning: Drop D
Capo: 1st fret, then 3rd fret after key change: Move capo during guitar break right 
the key change.

Note: Props to aznricyboy for making his tab.
I noticed he was counting the total number of frets, including the ones that have been 
off and not the usual way, which is to count the number of frets starting from the capo.

I revised his tab and posted it in this version. Again: THIS IS aznricyboy'S TAB AND HE 
CREDIT! the only thing I did was change the fret numbers to the usual counting method.
----
Intro:
"(Na na na na na na na na na)...."

e)--------------------------------|
B)--------------------------------|
G)--------------------------------|
D)-0~-7-5~-0~-7-55555555-77777777-|
A)-0~-7-5~-0~-7-55555555-77777777-|
D)-0~-7-5~-0~-7-55555555-77777777-|
"(Hey!  Hey!  Hey!  Hey!)...."

Verse:

e)------------------------------------------------------------------------|
B)------------------------------------------------------------------------|
G)------------------------------------------------------------------------|
D)-0000000000000000-55555555555555555-2222222222222222-55555555555555-777-|
A)-0000000000000000-55555555555555555-2222222222222222-55555555555555-777-|
D)-0000000000000000-55555555555555555-2222222222222222-55555555555555-777-|
PM....................................................................
"Top down in the summer sun
The day we met was like a hit and run
And I still taste it on my tongue (Taste it on my tongue)...."

e)----------------------------------------------------------------|
B)----------------------------------------------------------------|
G)----------------------------------------------------------------|
D)-0000000000000000-55555555555555555-2222222222222222-77777777-7-|
A)-0000000000000000-55555555555555555-2222222222222222-77777777-7-|
D)-0000000000000000-55555555555555555-2222222222222222-77777777-7-|
PM.....................................................
"The sky was burning up like fireworks
You made me want you oh so bad it hurts
But girl, in case you haven't heard...."

Chorus:

e)-------------------------------------|
B)-------------------------------------|
G)-44444444----------------------------|
D)-44444444-55555555-00000000-77777777-| x2
A)-22222222-55555555-00000000-77777777-|
D)----------55555555-00000000-77777777-|
"I used to be love drunk
But now I'm hungover
I love you forever
Forever is over
We used to kiss all night
Now it's just a barfight
So don't call me cryin'
Say hello to goodbye (Oh yeah!)...."

e)---------------------------------------------------------------|
B)---------------------------------------------------------------|
G)---------------------------------------------------------------|
D)-55555555-77777777-(9)(9)(9)(9)(9)(9)(9)(9)-77777777-----------|
A)-55555555-77777777-(9)(9)(9)(9)(9)(9)(9)(9)-77777777-----------|
D)-55555555-77777777-(9)(9)(9)(9)(9)(9)(9)(9)-77777777-----------|
"'Cause just one sip (Oh yeah!)
Would make me sick...."

e)------------------------------|
B)------------------------------|
G)-44444444---------------------|
D)-44444444-55555555-00000000-7-|
A)-22222222-55555555-00000000-7-|
D)----------55555555-00000000-7-|
"I used to be love drunk
But now I'm hungover
I love you forever
But now it's over...."

Fill:

e)-----------------------------------|
B)-----------------------------------|
G)-----------------------------------|
D)-0000000000007777-5555555577777777-|
A)-0000000000007777-5555555577777777-|
D)-0000000000007777-5555555577777777-|
"(Hey!  Hey!  Hey!  Hey!  Hey!  Hey!  Hey!  Hey!)...."

Verse:

e)------------------------------------------------------------------------|
B)------------------------------------------------------------------------|
G)------------------------------------------------------------------------|
D)-0000000000000000-55555555555555555-2222222222222222-55555555555555-777-|
A)-0000000000000000-55555555555555555-2222222222222222-55555555555555-777-|
D)-0000000000000000-55555555555555555-2222222222222222-55555555555555-777-|
PM....................................................................
"Hot sweat and blurry eyes
We're spinning on a roller coaster ride
With the world stuck in black and white...."

e)----------------------------------------------------------------|
B)----------------------------------------------------------------|
G)----------------------------------------------------------------|
D)-0000000000000000-55555555555555555-2222222222222222-77777777-7-|
A)-0000000000000000-55555555555555555-2222222222222222-77777777-7-|
D)-0000000000000000-55555555555555555-2222222222222222-77777777-7-|
PM....................................................
"You drove me crazy every time we touched
Now I'm so broken that I can't get up
Oh girl, you make me such a rush...."

Chorus:

e)-------------------------------------|
B)-------------------------------------|
G)-44444444----------------------------|
D)-44444444-55555555-00000000-77777777-| x2
A)-22222222-55555555-00000000-77777777-|
D)----------55555555-00000000-77777777-|
"I used to be love drunk
But now I'm hungover
I love you forever
Forever is over
We used to kiss all night
Now it's just a barfight
So don't call me cryin'
Say hello to goodbye (Oh yeah!)...."

e)---------------------------------------------------------------|
B)---------------------------------------------------------------|
G)---------------------------------------------------------------|
D)-55555555-77777777-(9)(9)(9)(9)(9)(9)(9)(9)-77777777-----------|
A)-55555555-77777777-(9)(9)(9)(9)(9)(9)(9)(9)-77777777-----------|
D)-55555555-77777777-(9)(9)(9)(9)(9)(9)(9)(9)-77777777-----------|
"'Cause just one sip (Oh yeah!)
Would make me sick...."

e)------------------------------|
B)------------------------------|
G)-44444444---------------------|
D)-44444444-55555555-00000000-7-|
A)-22222222-55555555-00000000-7-|
D)----------55555555-00000000-7-|
"I used to be love drunk
But now I'm hungover
I love you forever
But now it's over...."

Bridge:

e)-----------------------------------|
B)-----------------------------------|
G)-----------------------------------|
D)-5555555555555555-0000000077777777-| x2
A)-5555555555555555-0000000077777777-|
D)-5555555555555555-0000000077777777-|
"All the time I wasted on you
All the bullshit you put me through
I'm checking into rehab
'Cause everything that we had
Didn't mean a thing to you...."

e)------------------|
B)------------------|
G)------------------|
D)-5555555555555555-|
A)-5555555555555555-|
D)-5555555555555555-|
"...you...."

(Strum this after "I love you forever")
e)---|
B)---|
G)---|
D)-7-|
A)-7-|
D)-7-|
"I used to be love drunk
(But now I'm hungover)
I love you forever
But now I'm sober...."

***During John's drum fill, move your capo up to the third fret (a whole
step) if you have one.  Otherwise, bar your finger on the third fret every
time you see an open chord in the following chorus.***

Chorus:

e)---------------------------------------------------------------|
B)---------------------------------------------------------------|
G)-44444444------------------------------------------------------|
D)-44444444-55555555-00000000-(7)(7)(7)(7)(7)(7)(7)(7)-----------| x2
A)-22222222-55555555-00000000--(7)(7)(7)(7)(7)(7)(7)(7-----------|
D)---------- 55555555-00000000--(7)(7)(7)(7)(7)(7)(7)(7----------|
"I used to be love drunk
But now I'm hungover
I love you forever
Forever is over
We used to kiss all night
Now it's just a barfight
So don't call me cryin'
Say hello to goodbye (Oh yeah!)...."

e)---------------------------------------------|
B)---------------------------------------------|
G)---------------------------------------------|
D)-55555555-(7)(7)(7)(7)(7)(7)(7)(7)-----------|
A)-55555555-(7)(7)(7)(7)(7)(7)(7)(7)-----------|
D)-55555555-(7)(7)(7)(7)(7)(7)(7)(7)-----------|
"'Cause just one sip (Oh yeah!)...."

e)---------------------------------------------------------------------|
B)---------------------------------------------------------------------|
G)---------------------------------------------------------------------|
D)-(9)(9)(9)(9)(9)(9)(9)(9)-(7)(7)(7)(7)(7)(7)(7)(7)-------------------|
A)-(9)(9)(9)(9)(9)(9)(9)(9)-(7)(7)(7)(7)(7)(7)(7)(7)-------------------|
D)-(9)(9)(9)(9)(9)(9)(9)(9)-(7)(7)(7)(7)(7)(7)(7)(7)-------------------|
"Would make me sick...."

e)------------------------------------|
B)------------------------------------|
G)-44444444---------------------------|
D)-44444444-55555555-00000000-(7)\----|
A)-22222222-55555555-00000000-(7)\----|
D)----------55555555-00000000-(7)\----|
"I used to be love drunk
But now I'm hungover
I love you forever
But now it's...."

Outro:

e)---------------------------------------------------------------|
B)---------------------------------------------------------------|
G)---------------------------------------------------------------|
D)-0000000000000-(7)(7)(7)(7)-555555555555-(7)(7)(7)(7-----------| x4
A)-0000000000000-(7)(7)(7)(7)-555555555555-(7)(7)(7)(7-----------|
D)-0000000000000-(7)(7)(7)(7)-555555555555-(7)(7)(7)(7-----------|
"...over
(Na na na na na na na na na
Na na na na na na na na na
Na na na na na na na na na
Na na na na na na na na na)
(Now it's over)
(Still taste it on my tongue)
(Now it's)...."

e)----|
B)----|
G)----|
D)-0~-|
A)-0~-|
D)-0~-|
"...(over)...."