madonna adopted

I just heard a blurb about Madonna adopting. Do celebrities just pay people off to get children? (ie Angelina Jolie). It just seems like they suddenly go to a foreign country and pick up a child. Do they have to do all the paperwork, all the background checks, etc. to get approved to adopt? Or do they just get to do it?

On the braces thing, it's a medical deal because I have been grinding my teeth at night which is causing pain and headaches and the dentist thinks straigtening my teeth will help. It may not solve it, if it doesn't, I may need a mouthguard anyway. So, I'll have to see!