This is Doin' It Again intro by Skepta
I'm not sure if this is in the right scale but you can work it out from here...
www.myspace.com/skepta
e|-----------------------------------|
B|-----------------------------------|
G|-----------------------------------|
D|-----------------------------------| Do this how many times over.
A|--22--33--22---0-0--22--33---0-0---|
E|--------------2-2-----------2-2----|