These are the chords for Together by Plug In Stereo. He plays the same chords on 
this video: http://www.youtube.com/watch?v=06a65YsxozE

In this song he uses a capo at 3rd fret. Below I'll give you both chords with and without capo.

The tuning will be standard (EADGBe).

CHORDS USED:
CAPO 3rd FRET           (Without Capo):
C - (032010)            D# - (668886)
F - (033211)            G# - (466544)
Am - (002210)           Cm - (335543)
G - (320033)            A# - (688566)



  (D#) 
   C
Yo I don't wanna be the one to break the news to you
(G#)
F
But girl I'm so in love with you
(D#)
C
So tell me what the hell am I supposed to do
(G#)
F
I got this feelin'
(D#)
C
From my head down to my toes
(G#)
F
With a little bit of luck maybe she'll know
        (Cm)            (A#)
         Am              G
That I'm not quite over her




(D#)  (G#)           (Cm)   (A#)
C      F              Am     G
Hey I know that it's kinda been
(D#)       (G#)          (Cm)    (A#)
 C          F             Am      G
A long time since you and I were together
   (D#)  (G#)      (Cm)      (A#)
    C     F         Am        G
But hey I have a confession to make
        (D#)      (G#)      (Cm)     (A#)
         C         F         Am       G
I have a damn good time when we are together




  (D#) 
   C
Yo I don't wanna be the one to break the news to you
(G#)
F
But girl I'm such a fool for you
(D#) 
C
So tell me what the hell am I supposed to do
(G#)
F
I got this feelin'
(D#)
C
With a little bit of self esteem
      (G#)
       F
Catch a little bit of courage from a couple drinks
        (Cm)           (A#)
         Am             G
And I'll tell her how I feel




(D#)  (G#)           (Cm)   (A#)
C      F              Am     G
Hey I know that it's kinda been
(D#)       (G#)          (Cm)    (A#)
 C          F             Am      G
A long time since you and I were together
   (D#)  (G#)      (Cm)      (A#)
    C     F         Am        G
But hey I have a confession to make
        (D#)      (G#)      (Cm)     (A#)
         C         F         Am       G
I have a damn good time when we are together




(G#)          (A#)
F              G
     It's been too long since I've seen you
(Cm)                 (D#)
Am                    C
     And it's getting worse by the day
(G#)      (A#)
F          G
     I got something to tell you
      (Cm)         (A#)             (G#)
       Am           G                F
And I'm itching to hear what you'll say




(D#)  (G#)           (Cm)   (A#)
C      F              Am     G
Hey I know that it's kinda been
(D#)       (G#)          (Cm)    (A#)
 C          F             Am      G
A long time since you and I were together
   (D#)  (G#)      (Cm)      (A#)
    C     F         Am        G
But hey I have a confession to make
        (D#)      (G#)      (Cm)     (A#)
         C         F         Am       G
I have a damn good time when we are together