G (3x0033)
Dsus2 (xx0230)
Dsus4 (xx0233)
Em9 (xx2032)
Em7 (022033)
Cadd9 (032033)

Here is the intro/Verse :
   G                 Dsus2          Em9           Cadd9
E|-------------------------------------2-----------3---|
B|-----------3-------------5--------3-----------3------|
G|--0-----0-------0-----0--------0-----------0---------|
D|-----4-------------4--------2------------------------|
A|----------------------------------------3------------|
E|-----------------------------------------------------|
 you can also play this (guess that's what Kina plays):
    G
E|------------------------0-----------2----------3-----------|
B|-----------3---------3-----------3----------3--------------|
G|--------0---------2-----------0----------0-----------------|
D|-----0---------0-----------2-------------------------------|
A|--------------------------------------3--------------------|
E|--3--------------------------------------------------------|

at the end of the verse Alejandro plays these harmonic notes:

E|--------------------------------------------------------------|
B|----------(7)-----------------(12)----------------------------|
G|---(5)--------(7)--------(12)---------------------------------|
D|-------------------(7)----------------------------------------|
A|--------------------------------------------------------------|
E|--------------------------------------------------------------|
Verse 1,2 and Chorus: G,Dsus2,Em9,Cadd9 (finger picked)