Has Bieber Fever Broken?

America's favorite mop top cleaned up at the AMAs on Sunday with four awards, including Entertainer of the Year, but by last night people weren't so thrilled about his success: Conan's audience booed a mere mention of the pop star's name, and the Wrap speculated that Bieber may have been to blame for the awards show's worst ratings ever. Are these just cynical media types hating on kids today, or has the Bieb's audience already outgrown him? And what does this all mean for Greyson Chance?