FWIW, I've never heard more than a couple of sampling of Bieber's music and barley give the kid any thought whatsoever.
So, my first reaction to this sentence was to wonder when Justin Bieber started farming barley...

Now, excuse me, I'm going to go write a letter to The Nostalgia Critic and the Angry Video Game Nerd because I think their rants on decades old forms of entertainment are a bit too strong and they may have some anger issues they need to have resolved.
The Critic and the Nerd are obvious characters/cariactures, not their actual personalities.
Re: OP - hate the kid's music, thought for about 6 months his first big hit was sung by a girl, enjoy a good tearing into his work now and then. BUT, he seems like a nice enough guy and it's good that he's doing so well with his demographic.