you can play this song with 3 easy chords.
D
[ Tab from: http://www.guitaretab.com/a/avril-lavigne/263661.html ]
--------------------------2--2--2--2----------------------2--2--2--2--------|
--------------------------3--3--3--3----------------------3--3--3--3--------|
--------------------------2--2--2--2----------------------2--2--2--2--------|
------7---7---7---7-------------------------4--4--4--4----------------------|
------7---7---7---7-------------------------4--4--4--4----------------------|
------5---5---5---5-------------------------2--2--2--2----------------------|
Just repeat that.
