Avoiding the likes of Bieber, Britney, etc. isn't the answer, Witzendoz. You need small exposures to develop an immunity, otherwise when you accidentally get an earful you'll be totally unprepared.
I have a seven year old son and have found that, through the constant brief exposures (brief as in as long as it takes me to yell "turn that crap down") I can now endure videos like the one posted above without extreme nausea or suicidal tendencies.
To the OP: don't assume that the mic you see in the video is responsible for the Bieber sound. It's entirely possible that the mic you see is a prop not used for the real recording--but, even if it was, the voice you hear is heavily processed in the mix with all sorts of electronic effects added.