VIDEO: Who Does Ryan Seacrest Think Is the Biggest AMERICAN IDOL Star? Find Out Below!

Ryan Seacrest stopped by NBC's TODAY to discuss the final season of "American Idol," and reflects on the iconic reality competition's legacy. Asked to name the biggest star the show has produced, he chooses Carrie Underwood.

"I can't imagine life without going on the auditions every summer and then doing this show for months afterwards," he shares.

American Idol's farewell season kicks off on FOX at 8 p.m. Wednesday, Jan. 6.

Everyone's favorite singing competition returns for its highly anticipated 15th and farewell season. The fun begins when host Ryan Seacrest and returning judges Jennifer Lopez, Keith Urban and Harry Connick, Jr. travel to Denver and Atlanta, to discover the city's best talent.

This season promises to deliver the most talented group of singers yet and, as always, it's up to the viewers to root and vote for their favorite contestants, ultimately crowning the next AMERICAN IDOL.