Justin Bieber Talks Twitter and Grammys with Dave and Jay

With the release of "Never Say Never" just days away, Justin Bieber has been making the talk show rounds.
We're guessing most fans don't mind seeing his smiling face and shaggy hair all across their TV dial, right?
Over the last few days, Justin has talked puberty with Matt Lauer, Twitter with David Letterman and Grammy nominations with Jay Leno. The latter two interviews took place on January 28 and January 31 and we've posted excerpts from them below. Enjoy!