I'm new here. I'm happy that i found this intresting page.
So, I want to ask:
when I write to somebody I have write something like this: "Dear Madonna... ... .. ... ... ..." or "Dear Madonna's assistents.. .. . . . ".
I hope you understand what I want to ask.

By the way, Madonna is just and example here

and I'm so sorry for lots of mistakes cause English isn't my native language