Phantom Planet-See you next Summer
Your guitar has to be in standard tuning and you have to put a Capo on the third fret.
here's how it goes(I put the chords over the lyrics to help with the timing): 

Guitar chord Intro: G , D , G , C     G , D , C , G

Verse 1
G               D 
   so who's been calling you? 
G              C
   does he live far away? 
               G     D  C   G
   does that matter at all? 
   
G                D      
  what do you two talk about? 
G              C
  that we don't talk about 
                G        D             C
 is there anything that you'd like to say? 



Chorus
           G          C         D         G
   Cause this is the last time I'm gonna worry
                C               D            G
   This is the last time I've whistled this tune
                    C         D             G
   Cause if you go now, I'll see you next summer
       C    D  G  D    G , D , G , C     G , D , C , G
   So say goodbye to June


Verse 2
G            D
   I bet you tell him how
G               C
   Last summer spent with me 
            G         D         C
   Doesn't matter to anyone at all

G                 D
   There's no more looking back
G             C
   So I will turn my head 
             G                D               C
   with the feeling like I'm marching off to war



Chorus
           G          C         D          G
   Cause this is the last time I'm gonna worry
                C              D             G
   This is the last time I've whistled this tune
                    C         D              G
   Cause if you go now, I'll see you next summer
       C    D  G  D   G , D , G , C     G , D , C , G x2
   So say goodbye to June