In the dark on what all of these Justin Bieber fans know that you don't? Being a protege to Usher has its perks -- just ask the16-year-old pop singer. He has taken the music industry by storm -- so quickly, in fact, that most of us are scratching our heads and wondering, "Wait. Who is Justin Bieber?" Don't worry. You're not alone.

Let us break down the phenomenon in our 'Justin Bieber Guide for Dummies' guide, so you can be fully versed in the prepubescent's "Bieber Fever" that has taken over the (music) nation.