Justin Bieber is the youngest name on this list. While his baby-faced charm and voice worked to his benefit at age 15, it seems to have worn out for a lot of people now. Fans are growing older and so has his music, which is attempting to go a Justin Timberlake route. With age, you expect maturity. That’s not the case for Justin. His childish antics in the last couple of years only give haters fuel to their fire. He claims he wants to be taken seriously as an artist, but it’s hard to respect someone who seems to think normal rules don’t apply to him.