Uses the same notes as the chords do.
I couldn't find a single bass tab on the net.
Not perfect because sounded by ear, enjoy
EADG- standard
Wait until the guitar intro leads to the rest of the band to play
INTRO
Slide from 3 to 12 back to 3 in one strum
G|-------------------------------------------------------|
D|-------------------------------------------------------|
A|-3/12/3----333-----------------------------------------|
E|---------------1-1-11-5-5-55-3-3-33-3-11111111-333-3333|
VERSE pt.1
Life was simple...
G|---------------| G|---------------------------------|
D|---------------| D|---------------------------------|
A|333/1----------| X4 A|---------------------------------|
E|------11-555-33| E|15-15-15-------------------------|
At the end of the line, HIS WIFE WOULD KEEP HIM WARM
[ Tab from: https://www.guitartabs.cc/tabs/g/good_charlotte/1979_btab.html ]
VERSE pt.2 UNTIL CHORUS
G|----------------|
D|----------------|
A|333/12----------|
E|-------11-555-33|
CHORUS first half of VERSE 1
INTRO
VERSE pt.1
VERSE pt.2
CHORUS
BRIDGE
G--------------------------------------------------------|
D--------------------------------------------------------|
A------------------------33332222--------1313131313131313|
E|55555553333333311111111--------55555555----------------|
G|----------------------|
D|----------------------|
A|----------------------|
E|11111111-3-3-3-3-3-3-3|
Rest until there's 37 seconds left then
G|55------5/3 BUT DON'T STRUM 3rd-|
D|------------3-7-5---------------|
A|--------------------------------|
E|--------------------------------|
Chorus
THEN
G|-----------------------------------|
D|-----------------------------------|
A|-----------------------------------|
E|1313131313131313-0-1313131313131313|