Kara DioGuardi - Songwriter Kara DioGuardi will be the fourth judge added to the American Idol Season 8 panel of Simon, Paula, and Randy.

Kara DioGuardi, the new American Idol judge is an accomplished songwriter with an impressive list of credentials.

Kara Dioguardi has had songs recorded by Kelly Clarkson, Christina Aguilera, Gwen Stefani, Celine Dion, Faith Hill, [...]