A person who enjoys the music of Justin Bieber, but is too afraid to admit this to the world or any one person besides themself for that matter. Being that this artist gets hated on just as much as he is adored, making the statement of liking this sixteen year olds music and style is something that not everyone is proud of or comfortable with; hence, they are still "in the closet" with their JB love.
Yes world, I enjoy My World 2.0. I've been a closet Bieberian for 4 months now and I just can't keep this a secret any longer. I get down to Baby every time I hear it on the radio. Please don't disown me mom.