With so much accomplished in 2010,
"There's so much more in store for the future, or at least there's a ton of things we can do and will, and with the support of his fans who will continue to just grow and grow and grow."
At 16, Bieber has accomplished what few manage with many more years in the music business, but Usher said he wants to ensure that Bieber doesn't stop enjoying it all as his popularity continues to grow and his schedule gets busier.
Asked what he admires most about Justin, Usher said, "His excitement and innocence in it. And I don't mean that in a light way because I think that he's absolutely enjoying every moment of it, as any young man his age would, but in a different way because [of] the hard work that has gone in and led to the dream that has become a reality. And every time you have an opportunity do something incredible, I tell him to do his best and be conscious that what you're doing today should last forever and eternity."
What did you think of Justin's AMA performance on Sunday? Tell us in the comments!