It's written in A. I might have made a few mistakes- if you've got a correction 
let me know! No capo needed, standard tuning and standard chord voicings. As for 
strumming pattern anything like //\\/\ or something bouncy like that would work.  
Great song- hope you like it =)

Top of the World: Colorsound

Intro:
(x2)
A (x02220@1)          DDo (xx0232@1)dum ba da da
F#m (244222@1)           E (022100@1)      Ado (x02220@1)sum ba da da da

Verse 1:
A (x02220@1)                DI (xx0232@1)can't feel better 
               E (022100@1)       F#mthan (244222@1)the way I do
   A (x02220@1)              D (xx0232@1)                E (022100@1)             F#mevery (244222@1)thing's fine I'm so in love with you
A (x02220@1)                        Dthey (xx0232@1)all think I'm crazy
          E (022100@1)             F#mbut (244222@1)I know I'm right
 A (x02220@1)             D (xx0232@1)                       E (022100@1)            F#mnow (244222@1)I dont see the world in black and white

Chorus: 
                   A (x02220@1)            D (xx0232@1)     
and it feel so good, so good,
           F#m (244222@1)             Ewhen (022100@1)you're by my side
                   A (x02220@1)                Dand (xx0232@1)it feels so good, so good,
             F#m (244222@1)            Ethat (022100@1)I can't sleep at night
              F#m (244222@1)      DI (xx0232@1)think I fell in love
 F#m (244222@1)     Edo (022100@1)do do do
                     A (x02220@1)            Dand (xx0232@1)it feels so good, so good,
F#m (244222@1)          Ewith (022100@1)you I feel
                        Aon (x02220@1)top of the world

A (x02220@1)  D (xx0232@1) F#mdaaaa (244222@1)
E (022100@1)                     Abo (x02220@1)dum ba da da
A (x02220@1)  D (xx0232@1) F#mDaaaa (244222@1) E (022100@1)                     A(bo (x02220@1)dum da da da)

Verse 2:
Since I seen her face 
I can't look away
And now I know I'm better off this way
I can feel the city singing in the night
when everyone's asleep and out of sight

*Chorus*

Bridge:
          A (x02220@1)                            F#mMy (244222@1)heart keeps burning, baby burn
           D (xx0232@1)                EBut (022100@1)I can't let you go
          A (x02220@1)                              F#mMy (244222@1)heart keeps burning, baby burn
             D (xx0232@1)                 EAnd (022100@1)I want you to know
F#m (244222@1)                        DMinutes (xx0232@1)feel like hours
                              F#m (244222@1)                 Dwhen (xx0232@1)you're not there it's getting harder
 
                          E (022100@1)to let it go (ohhh)

*Chorus*

*Intro*