He is not unsigned, as this song is from the album of the same name and he has at least 7 albums.
Basically the intro just repeats over and over, and goes like this:
[ Tab from: http://www.guitaretab.com/m/misc-unsigned-bands/110230.html ]
e|----13~~-15~~-12~~~~~~~----------------10~~-12~~~~---15~~-13~~--|
A|----------------------------------------------------------------|
D|----------------------------------------------------------------|
G|----------------------------------------------------------------|
B|----------------------------------------------------------------|
E|----------------------------------------------------------------|
