ET's Thea Andrews takes you backstage at the "American Music Awards" to talk to the night's big celebs! Nick Cannon and Mariah Carey discuss future plans for a family, and Taylor Swift confesses her pre-show jitters.

Nick tells ET that he and Mariah do have plans to start a family.

"That's the whole purpose of marriage -- is to build a family, and when we start building a family we'll let ya'll know," Nick says.

Adult Contemporary music winner Jordin Sparks tells ET how it feels to go from a spectator to a nominee and a winner.

"Last year I was here just watching everybody," the former "American Idol" champ says. "And now I'm here and I got nominated and I actually got to take one home, so I'm really excited."

Watch how Jordin plans to treat herself after her AMA win, and see Taylor Swift reveal her awards show anxiety.