What do Jim Carrey, Cher, and the phantom of the opera all have in common?

I hide the world, then let it through, With just a pull, I change the view. On stage or window, I may fall, what am I, soft divider for all?

First four are partner of seek Last three are not in Together a place for villains to sneak Where they can plan their next sin

I’m skinny and tall, but the more that I speak, The shorter I get, and the more I grow weak. I wear a pink hat, though I don’t have a head, And my bones are made entirely of lead. I can draw you a world, or erase what is past, But the sharpest I am is when I'm running out fast.

Fast and high, I’m a swift little fellow Painful to do when your throat is not mellow