text: want 10 points? name all american idol winners and runner ups first person to get all of them wins! 1. kelly clarkson; justin guarini 2. ruben studdard; clay aiken 3. fantasia barino; diana degarmo 4. carrie underwood; bo bice 5. taylor hicks; katharine mcphee  first name is the winner; sencond is the runner-up.