However, some well-known runners-up include:
* Season 1: Justin Guarini
* Season 2: Clay Aiken
* Season 3: Diana DeGarmo
* Season 4: Bo Bice
* Season 5: Katharine McPhee
* Season 6: Melinda Doolittle
* Season 7: David Archuleta
* Season 8: Adam Lambert
* Season 9: Adam Lambert (again! He came in second in season 8 but returned for the "Idol Gives Back" season)
* Season 10: Lauren Alaina
* Season 11: Jessica Sanchez
* Season 12: Candice Glover
* Season 13: Jena Irene
* Season 14: Jena Irene (again! She came in second in season 13 but returned for the "Idol Gives Back" season)
* Season 15: La'Porsha Renae
* Season 16: Caleb Johnson
* Season 17: Maddie Poppe
This is just a small sample. To see the full list of American Idol contestants and their placements, you can visit the official American Idol website or check out Wikipedia's list of American Idol contestants.
Do you have any other questions about American Idol or its contestants?