the King and Queen of Pop certainly can have multiple children guys, chill. It's not like they sterilized after their first born child aka Britney Spears
Magazines and such just give titles. I wish ya'll would calm down. Pretty much everyone got some "princess" title. Hell P!nk has been called a Pop princess or the Pop punk princess or the Pop rock princess.
Miley is one of the Pop princesses. There's like 10