its not really a solo its just wat the bass has...thru like the entire song
G|-----------------|
D|-----------1-0---|
A|-----131-3-------|
E|3--3-------------|
this part s optional...i do it cuz it sounds kewl
G|------------------|
D|--------1-0-------|
A|--131-3-----31----|
E|3--------------3--|
^^^^
and sometimes theres this
G|-------------------------|
D|-------------------------|
A|3-3-3---0-0----5-5-------|
E|--------------------3----|
then back to the beginning