I don't see any problems with people becomming famous overnight without having to suffer for years. Some are in the business for years before hitting it big, and some became famous shortly after starting (though I don't exactly know of any examples of people who literally got instant stardom... Maybe the Olsen twins...).
But I hate Justin Bieber. He's way too overrated. I'm glad he hasn't worked with the Muppets yet (though my opinions of the Muppets wouldn't lower if he did... it wouldn't be too different from all the celebrities in the Studio DC specials). I can't believe he put out an autobiography within a year of stardom (a biography so soon by somebody else is one thing, but I would have waited until maybe five years of fame before writing an autobiography). I don't like that he was parodied on Sesame Street (in my opinion the only reason to parody him is to brutally make fun of him). I hope that Weird Al Yankovic's inclusion of "Baby, Baby, Baby" in his "Polkaface" medley was because of the singers popularity and not because he particularly liked him (though I also felt surprised someas great as Yankovic liked Lady Gaga, who's only slightly better than Bieber). I was surprised when I heard he was discovered by either Usher or Usher's agent, thinking it's odd that a professional rapper would like him... But then again, Usher isn 't really that much more talented, is he?
I remember when I first heard of Justin Bieber, somebody at Hot Topic was talking about him, because they sold Justin Bieber merchandise. The people there hated him, and told me that he did videos on YouTube, so I decided to check out one on YouTube to judge fairly (and normally, I hate a lot of popular things without actually watching them). But then I started watching a Justin Bieber video... And I felt it was so bad that I couldn't bring myself to watch the whole thing. Can't remember what I hated about it... Maybe the visuals, maybe the music/lyrics, maybe it was all bland, maybe it was a combination of things.
In my opinion he has only one fanbase, tween/teen girls. Maybe he does have more fans outside of that demographic. And maybe that is his intended target audience (I'd rather target different demographics). If I'm right about his only fans being girls aged 12-16 I wonder if he's aware of that, and how he feels about only attracting one age group (well, I guess he wouldn't have minded much back when he was a minor). You could say he's the teenage girls equivilient of Barney the Dinosaur.
And has anybody noticed that he has the same initials as the most-hated Star Wars character Jar Jar Binks? Coincidence?