Carrie Underwood Celebrates Major Career Milestone

Carrie Underwood is marking a major anniversary in her illustrious career!

The "Before He Cheats" singer celebrated 15 years as a member of the Grand Ole Opry in Nashville, Tenn., yesterday, May 13, where the organization honored her with a giant tiered stack of cupcakes and cake and a framed plaque to commemorate the achievement.

The country icon let fans in on the moment with a series of photos of the event on Instagram late last night, which also included shots of her performing on stage. She wore a strapless magenta lace-overlay dress with ruffled lining and a pop of white peeking out under the hem for the occasion.

She was also photographed with singer Deana Carter and actor Susan Lucci, who she was excited to meet for the first time, while the last pic showed a glimpse of a bouquet of soft pink roses and baby's breath alongside a handwritten card from some of her fans that read, "To make this day special for you we all got together to give you these! Plus $250 to the C.A.T.S. Foundation [Checotah Animal, Town, and School Foundation, which she established in her hometown to fund general needs in the area]! Happy 15th Opry-versary Carrie! Thank you for everything! Here’s to many more years! We love you! Love, your CareBears."

"Happy anniversary to me!!!" Underwood wrote in the caption. "It’s been a magical 15 years of being an @opry member! It remains one of the greatest accomplishments of my career!!! Thanks to all who came out to celebrate! I truly feel honored…and loved! Also, I met @therealsusanlucci tonight!!! What a sweet and gorgeous (and legendary) woman! ❤️❤️❤️."

Lucci left a sweet response in the comments, writing, "I am SO happy to have met you, Carrie!!! You are beautiful inside and out💖💖💖🌟🌟🌟."

"Congratulations. You looked stunning tonight. Fantastic accomplishment on 15 years at the Opry," one fan wrote.

"Congrats Carrie!! Crazy to think it’s been that long already!" another reminisced.

"Happy Anniversary! Thank you for sharing your incredible talent with all of us! ❤️," said a third.

Underwood made her Opry debut just a few weeks after winning the fourth season of American Idol on May 25, 2005. She quickly became a regular and was invited to become a member of the organization by Randy Travis during her concert on March 15, 2008. She was inducted on May 10, 2008.

Next: Carrie Underwood Shows Off ‘Ripped Legs’ in Denim Romper While Celebrating Major Career Move