See hilarious old pictures of Mariah Carey, Nicki Minaj, Keith Urban and Randy Jackson
Nicki Minaj: Now
Minaj -- who was also previously in talks to join The Voice -- was admittedly hesitant to take part in the reality TV juggernaut that is American Idol. "Sometimes you are afraid of being too famous because it's almost, like, is that even cool?" she told The Hollywood Reporter. "Being that accessible, someone you see on TV every week? I never pictured myself as that type of person. I'm still surprised that I decided to do it."