Carrie Underwood Celebrates 15 Year Anniversary of 'American Idol' Win

Carrie Underwood is reflecting on a milestone in her career!

The 37-year-old “Before He Cheats” singer celebrated the 15th anniversary of her American Idol win in 2005 on Twitter on Monday (May 25).

PHOTOS: Check out the latest pics of Carrie Underwood

Carrie reacted to a sweet fan video celebrating her victory.

“WOW, I cannot believe it’s been 15 years since my @americanidol win!!! It’s been an incredible ride and I couldn’t have made it through without all of you guys!! THANK YOU so much for this sweet video!!” she wrote.

Back in 2005, Carrie Underwood was crowned the winner of American Idol Season 4, beating out runner-up Bo Bice and launching her career with debut single “Inside Your Heaven,” which debuted at No. 1 on the Billboard Hot 100.

She also just showed off her swimwear line in a cute selfie.

Check out Carrie Underwood‘s reaction…