Justin Guarini and Kelly reflect on the first season of "American Idol," and Justin shares how his time mentoring young artists after the show has become his true legacy. Justin also dishes on playing a villain in the new animated Disney series "SuperKitt...

Kelly Clarkson credits her “musical partner” and director Jason Halbert for her career, and reveals Randy Jackson originally hired him for Justin Guarini’s band, but she stole Jason after winning “American Idol.”