This is my first submission, but I'm pretty confident these are all the right chords! 
Standard E tuning. If you want to play along with the riff, you can just camp out on the 
Bm chord. Enjoy! It's a great song!

Welcome to the Masquerade

BmWe've (x24432@1)got the fire, who's got the matches?
G (320003@1)		  ATake (x02220@1)a look around at the sea of masks
    BmAnd (x24432@1)come one, come all, welcome to the Grand Ball,
          GWhere (320003@1)the strong run for cover,
        AAnd (x02220@1)the weak stand tall

BmI'm (x24432@1)not one to scatter ashes,
    F#But (244322@1)there's some things that'll,

Melt the plastic
A (x02220@1)	         E (022100@1)  G (320003@1) F#Try (244322@1)and dig down deeper, if you can..

Bm (x24432@1)GI'm (320003@1)not afraid, I'm not ashamed,
AI'm (x02220@1)not to blame,
F#Welcome (244322@1)to the masquerade
Bm (x24432@1)             GI'm (320003@1)not ashamed, I'm not afraid,
AI'm (x02220@1)not OK,
F#Welcome (244322@1)to the masquerade

BmWe've (x24432@1)got the power,

Who's got the action?
GBreak (320003@1)it down till there's nothin'
ABut (x02220@1)a mere fraction
BmOut (x24432@1)of the fire,

Rise from the ashes,
GRe-ject (320003@1)..ya doubt,
        AAnd (x02220@1)..re-lease the passion

BmLet's (x24432@1)get on it,

Believe, if you want it,
GStep (320003@1)into the realm,
          AWhere (x02220@1)the real one's flaunt it
BmCome, (x24432@1)back, re-wind,

Another time on it,
GReach (320003@1)out, take that,
    AOne (x02220@1)off, step on it