Watch: Carrie Underwood cries tears of joy and gratitude at Hollywood Walk of Fame ceremony
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"How is this my life?" Carrie Underwood said through tears of joy when she got into got her star on the Hollywood of Fame at a ceremony that took place Sept. 20. Underwood, who was the winner of the fourth season of "American Idol" in 2005, got emotional during her speech at the ceremony, where former "American Idol" judge Simon Cowell and Underwood's longtime Country Music Association Awards co-host Brad Paisley also gave speeches.

A sunglass-wearing Cowell, who said he had been celebrating at the “America’s Got Talent” season finale party the night before, made an apology in advance if he ended up mumbling and quipped, “I think you know where this is going. I have never felt so hungover in my life.” In his speech, Cowell remembered that the "American Idol" auditions for the fourth season were the “worst ‘American Idol’ season I have ever had” until Underwood’s audition. “I thought, We may have found a great artist here.’ And then we did."

He also reminded the crowd about his prediction on “American Idol” after Underwood sang Heart’s “Alone” that she would become the world’s best-selling “American Idol” winner. Cowell added that he couldn’t have anticipated the “phenomenal” way that Underwood lived out his prediction. He said to Underwood, “Apart from being a great artist, you’re a role model, you’re a very sweet person…And you did it your way. I am so happy for you.”

Paisley said in his speech: "Carrie, in many ways, is this generation’s Dolly [Parton]: the person the world looks at as Ms. Country Music. I don’t think we could have a better ambassador, a better person."

When Underwood stepped up to the podium, she said, “How is this my life? How does a girl from Checotah, Oklahoma, end up with a star in the Hollywood Walk of Fame? I’ll tell you how. I have been so blessed in my life to have so many people who believe in me.” She went on to thank her family, work colleagues, fans and friends, particularly singling out her parents, her husband and her son Isaiah.

A playback of the entire ceremony's live stream can be found here.

Underwood, who is pregnant and due to give birth sometime in early 2019,  has been busy promoting her sixth studio album., Cry Pretty, which was released on Sept. 14. On Sept. 20, she also did a Spotify Q&A and performed on "The Ellen DeGeneres Show." Underwood is also set to perform at the iHeartRado Music Festival in Las Vegas on Sept. 22, the American Music Awards in Los Angeles on Oct. 9, and the CMT Artists of the Year show in Nashville on Oct. 17. She's also co-hosting the CMA Awards again with Paisley on Nov. 14  in Nashville. In 2019, she heads on out her Cry Pretty Tour 460 360, which kicks off May 1 in Greensboro, North Carolina.