Carrie Underwood appeared on NBC’s Today show this morning, where she announced that on December 9th, she’ll be releasing her very first hits collection, titled Greatest Hits: Decade #1. Celebrating her first decade in music since winning American Idol, Carrie’s album — with a final track listing to be announced — will pull from her 18 number-one hits and also include new material, which kicks off with the September 29th release of the first single, a song that Carrie co-wrote called “Something in the Water.” Carrie says that she’s thrilled to be getting some new music out to her fans, and she really hopes that “Something in the Water” will touch listeners in the same way that it affects her. (AUDIO INFO BELOW)

• Produced by longtime Carrie collaborator Mark Bright, and written by Carrie, Chris DeStefano, and Brett James, “Something in the Water” will be delivered to country radio in time to coincide with the song’s retail release on Monday!
• About her Greatest Hits: Decade #1, Carrie said in a press release, “I can’t believe it’s been a decade since I auditioned for American Idol. Looking back at the songs I’ve released over the years lets me relive my amazing journey. Even better I get to include new music for the fans!”
• Earlier today, Carrie shared a teaser video about “Something in the Water” on her Facebook page…you can see it here!
• Look below to check out the artwork for Carrie’s “Something in the Water” single, as well as her upcoming Greatest Hits: Decade #1!
• On Saturday, Carrie will be among the artists performing at the Global Citizen Festival in New York’s Central Park. You can watch the event on MSNBC on Saturday beginning at 3pm, ET, or see the livestream on msnbc.com. Also on Saturday, the event will be the focus of a one-hour primetime special at 9pm, ET, on NBC. Alicia Keys has been added to the line-up of talent, as has Sting, who will join No Doubt, one of the previously announced list of headliners that includes Carrie, JAY Z, fun., The Roots, and Tiësto.

  Carrie Underwood hopes that listeners will be inspired by her new single, “Something in the Water.” (:23)
“‘Something in the Water,’” more than anything I hope that people are inspired, you know? It’s joyous, it’s glorious; I just want people to smile. I can’t help but smile. I hate listening to myself (laughs), but this is definitely one that it’s kind of like as soon as I got it, I’m in my car and, you know, wanting to play it again because it just…it made me joyful. It made me happy.”

  Carrie Underwood talks about releasing her new single, “Something in the Water.” (:33)
“I’m very excited to have new music out. It feels like it’s…I like having my space, you know, and being able to figure out where I want to go, and things can really start running together after a while if you don’t just give yourself time to live a little bit and to write a little bit and to figure out what the new sound is gonna be. But it’s time, and I’m really excited, and I’m excited that, you know, ‘Something in the Water’ is coming out this time of year, kind of such a magical, magical time. So I’m very excited. I can’t wait for everybody to hear it.”