In the last week, we learned that Katy Perry's mother is shopping around a book proposal about her famous daughter, and Rihanna opened up to Vogue magazine about her father's betrayal. Every person struggles with who to trust, but that dilemma is magnified tenfold when you are in the public eye and suddenly people can profit simply by knowing you.

"It is very detrimental for a parent of a celebrity to capitalize in any way on their child's fame," Dr. Charles Sophy, author of 'Side by Side: The Revolutionary Mother-Daughter Program for Conflict-Free Communications,' tells PopEater. "Especially if it is not discussed beforehand."