American Idol

Carrie Underwood is joining the roster of American Idol judge, and Luke Bryan already knows what to expect.

In the end, Carrie was the perfect choice.

A source says Underwood was not producers' first choice.

Urban has been there and done that, so he offers up his thoughts on Underwood following in his footsteps.

Clarkson explains why she thinks Underwood will be an incredible judge on the show.

He was a judge on the season she competed on.

The singer reflects on her big win ... that she didn't really want.

She's opening up about the great advice she got from one kind-hearted star.

Carrie Underwood is the most successful contestant to come out of 'American Idol.'

Is it advice? Or is it a warning? You decide.