Hey, A lot of the other ones go the Em, D, C route but it doesnt seem theres that much different between the first two chords. This is a set of chords I've started playing for it. I'm pretty sure capo 7th fret is the actual tone for it but I can't sing that high during the chorus so I play it on fourth, but in fairness if you don't have a capo then the other tabs work just as well. Verse 1:

^AmSing it out,^C boy you've got to s^Gee what tomorrow brings^G ^AmSing it out,^C girl you've got to ^Gbe what tomorrow needs^G

^AmFor every ti^Cme, that they wa^Gnt to count you out ^G ^AmUse your voi^Cce, every sin^Ggle time you op^Gen up your mouth

Chorus:

^C Sing it for the bo^Gys, sing it for the g^Amirls Every time that you l^Fose it sing it for the world ^C

^CSing it from your hea^Grt, sing it till you're nu^Amts Sing it out for the w^Forld that'll hate your guts ^C

^CSing it for the dea^Gf, sing it for the bli^Amnd Sing about everyo^Fne that you left behind ^C

^CSing it for the wo^Grld, sing it for the wor^Amld

Verse 2:

^AmSing it o^Cut, boy they're gunna s^Gell what tomorrow means ^AmSing it o^Cut, girl they're gunna ^Gkill what tomorrow brings. You've got to

^AmMake a ch^Coice if the mu^Gsic drowns you out ^AmRaise your v^Coice, every si^Gngle time they try and shut your mouth

Chorus:

^C Sing it for the bo^Gys, sing it for the g^Amirls Every time that you l^Fose it sing it for the world ^C

^CSing it from your hea^Grt, sing it till you're nu^Amts Sing it out for the w^Forld that'll hate your guts ^C

^CSing it for the dea^Gf, sing it for the bli^Amnd Sing about everyo^Fne that you left behind ^C

^CSing it for the wo^Grld, sing it for the wor^Amld

Break:

^AmCleaned up, corporation pro^Ggress Dying in the pro^Fcess

Children that can talk about it Living on the ra^Amilways People moving si^Gdeways

Sell it till your la^Fst days Buy yourself the motivation generation n^Amothing,

Nothing but a de^Gad scene Product of a wh^Fite dream

I am not the singer that you wanted, but a da^Amncer I refuse to an^Gswer, talk about the p^Fast, sir

C(One strum then mute) Wrote it for the ones that want to get away. Keep Running Chorus:

^C Sing it for the bo^Gys, sing it for the g^Amirls Every time that you l^Fose it sing it for the world ^C

^CSing it from your hea^Grt, sing it till you're nu^Amts Sing it out for the w^Forld that'll hate your guts ^C

^CSing it for the dea^Gf, sing it for the bli^Amnd Sing about everyo^Fne that you left behind ^C

^CSing it for the wo^Grld, sing it for the wor^Amld

Hope this helps

My Chemical Romance - Sing