Verse:
G-----------------------------------------
D-----------------------------------------
A-666666666666-555555555555-333333-111111-
E-----------------------------------------x2
[ Tab from: https://www.guitartabs.cc/tabs/a/all_american_rejects/why_worry_btab.html ]
Pre-Chorus:
G-----------------------------------------
D-----------------------------------------
A-66-66--66-66--66-66--66-66-111111111111-
E-----------------------------------------
Chorus:
G-------------------------------------
D-------------------------------------
A-66666666-55555555-33333333-11111111-
E-------------------------------------x2
Bridge: Same as Pre-Chorus