In 2019, Guarini even joined guests Paula Abdul, Randy Jackson, and Simon Cowell on NBC’s “The Kelly Clarkson Show” to reminisce about “American Idol” and the musical comedy “From Justin to Kelly” (2003).
“I will always be one of her biggest fans because I was there from the beginning and got to see her progression,” Guarini told Insider.
He also said Clarkson is able to connect with her fans “so deeply” because she is relatable and authentic.
“One of my favorite things about Kelly is that who you hear on the TV is exactly who you see and hear backstage,” Guarini said. “In any given situation, she has always been so herself.”