If you watch them play live, this is how he plays it.

|-------------------------------------------|
|---------------------------17p0------------|
|-----------16p0-----------------16p0-19p16-|
|------17p0------------17p0-----------------|
|-19p0-----------19p17----------------------|
|-------------------------------------------|

|---------------------------|
|-12-12-12/5-5-5xx-7-7------|
|-12-12-12/5-5-5xx-7-7------|
|-14-14-14/7-7-7xx-9-9-99-9-|
|----------------------77-7-|
|---------------------------|
 ( muted 1st time )

BREAKDOWN
|------------------------------------|
|-------------------------17---------|
|---------16-------------------------|
|-----16------16------16------16-----|
|-19--------------19--------------19-|
|------------------------------------|


There you go, should be all good but im not quite 100% on all of those chords. Your 
Who loves Portugal. The Man