ok very easy song to play. i made them power chords because its the easiest way to
play it. if you used full bar chords it didn't sound exactly the same way

standard EADGBe tuning

C# = X466 [A string]
G# = 466  [E string]
A# = X133 OR 688 [A string OR E string, in tab written as 688, I find it easier]
F# = 244  [E string]

E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6------------------------------------------------------------------|
D-6------------------------------------------------------------------|
A-4------------------------------------------------------------------|
E-X------------------------------------------------------------------|

VERSE 1 "When he said I hope you're sleeping better"              
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6-----------6------------------------------------------------------|
D-6--6--8--6--6--6--4------------------------------------------------|
A-4--6--8--6--4--6--4------------------------------------------------|
E-X--4--6--4--X--4--2------------------------------------------------|

PRE-CHORUS - "So when you're pulling on your trendy clothes"
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G--------------------------------------------------------------------|
D-6--8--4------------------------------------------------------------|
A-6--8--4------------------------------------------------------------|
E-4--6--2------------------------------------------------------------|

CHORUS - "Na na na"
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6------------------------------------------------------------------|
D-6--6--8--6---------------------------------------------------------|
A-4--6--8--4---------------------------------------------------------|
E-X--4--6--4---------------------------------------------------------|

VERSE 2 "When she said you gotta make your plans"                 
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6-----------6------------------------------------------------------|
D-6--6--8--6--6--6--4------------------------------------------------|
A-4--6--8--6--4--6--4------------------------------------------------|
E-X--4--6--4--X--4--2------------------------------------------------|

CHORUS - "Na na na"
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6------------------------------------------------------------------|
D-6--6--8--6---------------------------------------------------------|
A-4--6--8--4---------------------------------------------------------|
E-X--4--6--4---------------------------------------------------------|

Bridge "Here's to all the boys you'll kiss"
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6------------------------------------------------------------------|
D-6--8--6------------------------------------------------------------|
A-4--8--6------------------------------------------------------------|
E-X--6--4------------------------------------------------------------|

Outro [bridge + chorus sang together]
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6------------------------------------------------------------------|
D-6--6--8--6---------------------------------------------------------|
A-4--6--8--4---------------------------------------------------------|
E-X--4--6--4---------------------------------------------------------|

End on:
E--------------------------------------------------------------------|
B--------------------------------------------------------------------|
G-6------------------------------------------------------------------|
D-6------------------------------------------------------------------|
A-4------------------------------------------------------------------|
E-X------------------------------------------------------------------|

peace out cub scouts