The song is really a piano song, if you know how it goes, you should get the rhythm, but
that really most of the song is done with these chords played as quarter notes and 
descending. I figured this out on my own, if you have any corrections leave a comment :)

BbBack (x1333x@1)to the street where we began
                           Bb/A    GmFeeling (355333@1)as good as lovers can, you know
            Dm (xx0231@1)      EbYeah (x43121@3)we're feeling so good

Bb (x1333x@1)                     Bb/A
Back to the street where we began
Gm (355333@1)               Bb/A                 Gm(someone (355333@1)
A major there for A second)
Feeling as good as love, you could, you can

Chorus
            Eb (x43121@3)        F (133211@1)   Bb'Cause (x1333x@1)it's nine in the afternoon
         Bb/A                     GmAnd (355333@1)your eyes are the size of the moon
                                DmYou (xx0231@1)could 'cause you can so you do

We're feeling so good
         Ebjust (x43121@3)the way that we do
          F (133211@1)               BbWhen (x1333x@1)it's nine in the afternoon
     Bb/A                     GmYour (355333@1)eyes are the size of the moon
                                DmYou (xx0231@1)could 'cause you can so you do
      EbWe're (x43121@3)feeling so good
(kinda a weird time signature)


And thats about it, theres a few little tricks done with those chords throughout the 
but thats just about the foundation of it.