I decided to make my own chord tab for this song because all the others posted 
here are not correct. For starters they all show a B minor chord instead of the B 
major chord. Just play the arpeggio (and strumming) parts with each one and see 
which one fits the music you hear on the recording. Additionally, the chorus and 
refrain progressions were not correct. So here it goes...

Chords used in the song
B, G, A, Asus2, Em, F#m

Intro
B G Asus2 x4 (arpeggio) [for the most part this is what is played, but there are 
slight variations throughout the song]

e|--------------------------------|
B|-------3---------------------0--|
G|-----4---4---4-------0-----2----|
D|---4-------4-------0-----2------|
A|-2---------------2-----0--------|
E|---------------3----------------|

Verse 1 (play chord arpeggios)
B (x2444x@1)                              G (320003@1)              Asus2I (x02200@1)took a walk around the         world to ease my troubled mind 
B (x2444x@1)                              G (320003@1)              Asus2I (x02200@1)left my body laying            somewhere in the sands of time 
B (x2444x@1)                              G (320003@1)              Asus2I (x02200@1)watched the world float to the dark side of the moon 
B (x2444x@1)                              G (320003@1)              Asus2I (x02200@1)feel there is nothing  I  can  do,                       yeah

B G A x2 (strummed)

Verse 2 (play chord arpeggios)
B (x2444x@1)                              G (320003@1)              Asus2I (x02200@1)watched the world float to the dark side of the moon 
B (x2444x@1)                              G (320003@1)              Asus2After (x02200@1)all I knew it had to       be something  to do with you 
B (x2444x@1)                              G (320003@1)              Asus2I (x02200@1)really don't mind what         happens now and  then 
B (x2444x@1)                              G (320003@1)              Asus2As (x02200@1)long as  you'll  be  my       friend  at  the  end

Chorus
B (x2444x@1)                           G (320003@1)               AIf (x02220@1)I go crazy then will       you still call me Superman 
B (x2444x@1)                           Em (022000@1)              F#m (244222@1)      BIf (x2444x@1)I'm alive and well,   will you be there      holding my hand 
B (x2444x@1)                           G (320003@1)               A (x02220@1)        BI'll (x2444x@1)keep you by my side with my           superhuman      might
B (x2444x@1)                           Em (022000@1)              F#mKryptonite (244222@1)
B G A x 2 (strummed)

Verse 3
B (x2444x@1)                                 G (320003@1)           A (x02220@1)            BYou (x2444x@1)called me strong, you called me weak but your secrets I will keep 
B (x2444x@1)                          Em (022000@1)          F#mYou (244222@1)took for granted all the times I never let you down 
B (x2444x@1)                             G (320003@1)              A (x02220@1)                  BYou (x2444x@1)stumbled in and bumped your head, if not for me then you would be dead 
B (x2444x@1)                          Em (022000@1)          F#mI (244222@1)picked you up  and put you back on solid ground

Chorus
B (x2444x@1)                           G (320003@1)               AIf (x02220@1)I go crazy then will       you still call me Superman 
B (x2444x@1)                           Em (022000@1)              F#m (244222@1)      BIf (x2444x@1)I'm alive and well,   will you be there      holding my hand 
B (x2444x@1)                           G (320003@1)               A (x02220@1)        BI'll (x2444x@1)keep you by my side with my           superhuman      might
B (x2444x@1)                           Em (022000@1)              F#mKryptonite (244222@1)
Interlude 
Play the chorus with no lyrics

Refrain
B A G x 2 (strummed)

B (x2444x@1)                           A (x02220@1)               GIf (320003@1)I go crazy then will       you still call me Superman 
B (x2444x@1)                           A (x02220@1)               GIf (320003@1)I'm alive and well,   will you be there      holding my hand 
B (x2444x@1)                           A (x02220@1)               G (320003@1)        BI'll (x2444x@1)keep you by my side with my           superhuman      might
B (x2444x@1)                           Em (022000@1)              F#mKryptonite (244222@1)
Chorus
B (x2444x@1)                           G (320003@1)               AIf (x02220@1)I go crazy then will       you still call me Superman 
B (x2444x@1)                           Em (022000@1)              F#m (244222@1)      BIf (x2444x@1)I'm alive and well,   will you be there      holding my hand 
B (x2444x@1)                           G (320003@1)               A (x02220@1)        BI'll (x2444x@1)keep you by my side with my           superhuman      might
B (x2444x@1)                           Em (022000@1)              F#mKryptonite (244222@1)
Outro
Play the chorus with no lyrics, end on return to B

(vocalizing)     Oh whoa whoa x3