This is my first tab so it's probably not perfect. This is how I play it and it sounds 
pretty good.
For the Bm I pick the adgbgda strings in that order and the adgb strings in that order 
for the G and A.
I hope you enjoy this.

Intro
Bm G A x4

Verse 1
Bm (x24432@1)                     GI (320003@1)took a walk around the world to

AEase (x02220@1)my troubled mind

Bm (x24432@1)                  GI (320003@1)left my body laying somewhere

AIn (x02220@1)the sands of time

Bm (x24432@1)                             G (320003@1)              AI (x02220@1)watched the world float to the dark side of the moon

Bm (x24432@1)                          G (320003@1)      AI (x02220@1)feel there is nothing I can do, yeah

Bm G A x2

Verse 2
BmI (x24432@1)watched the world float to the

G (320003@1)              ADark (x02220@1)side of the moon

Bm (x24432@1)                          GAfter (320003@1)all I knew it had to be something

ATo (x02220@1)do with you

Bm (x24432@1)                     G (320003@1)             AI (x02220@1)really don't mind what happens now and then

Bm (x24432@1)                    G (320003@1)           AAs (x02220@1)long as you'll be my friend at the end

Chorus (Use power chords)
B (x2444x@1)                         GIf (320003@1)I go crazy then will you still

ACall (x02220@1)me Superman

B (x2444x@1)                         GIf (320003@1)I'm alive and well, will you be

AThere (x02220@1)a-holding my hand

BI'll (x2444x@1)keep you by my side with

G (320003@1)     A (x02220@1)   BMy (x2444x@1)superhuman might

E F#
Kryptonite

Interlude
Bm G A

Verse 3
Bm (x24432@1)                                GYou (320003@1)called me strong, you called me weak

ABut (x02220@1)your secrets I will keep

Bm (x24432@1)                         GYou (320003@1)took for granted all the times I

ANever (x02220@1)let you down

Bm (x24432@1)                            GYou (320003@1)stumbled in and bumped your head, if

ANot (x02220@1)for me then you'd be dead

Bm (x24432@1)                        GI (320003@1)picked you up and put you back

AOn (x02220@1)solid ground

Chorus
B (x2444x@1)                         GIf (320003@1)I go crazy then will you still

ACall (x02220@1)me Superman

B (x2444x@1)                         GIf (320003@1)I'm alive and well, will you be

AThere (x02220@1)a-holding my hand

BI'll (x2444x@1)keep you by my side with

G (320003@1)     A (x02220@1)   BMy (x2444x@1)superhuman might

E F#
Kryptonite

Solo (Power chords)
B G A x4
E F# (Play on the fourth time instead of G and A)

Chorus
Bm (x24432@1)                        GIf (320003@1)I go crazy then will you still

ACall (x02220@1)me Superman

Bm (x24432@1)                        GIf (320003@1)I'm alive and well, will you be

AThere (x02220@1)a-holding my hand

BmI'll (x24432@1)keep you by my side with

G (320003@1)     A (x02220@1)   BmMy (x24432@1)superhuman might

Kryptonite

Chorus
B (x2444x@1)                         GIf (320003@1)I go crazy then will you still

ACall (x02220@1)me Superman

B (x2444x@1)                         GIf (320003@1)I'm alive and well, will you be

AThere (x02220@1)a-holding my hand

BI'll (x2444x@1)keep you by my side with

G (320003@1)     A (x02220@1)   BMy (x2444x@1)superhuman might

E F#
Kryptonite

Outro solo
B G A x4
E F# (Play on the fourth time instead of G and A)