Carrie's new album Play On, will release on November 3, and a new track from the album will be available for purchase and download exclusively on iTunes every week for three weeks, with each new song also available as a free 60-second preview on Billboard.com.

The exclusive iTunes Countdown pre-release tracks, which begin with “Mama’s Song,” (available now) all count toward the purchase of the full album through iTunes' Complete My Album feature. The subsequent tracks include “Temporary Home” (available 10/20) and “Undo It” (available 10/27).

For each new track every week, fans will be able to visit Billboard.com for a 48-hour sneak preview of the song immediately prior to its Tuesday release on iTunes, with each posting remaining on Billboard.com for a week from its debut.

In addition to the weekly online previews at Billboard.com, Underwood will be the focus of an online feature as well as a cover feature in the print edition of Billboard, on sale October 16.

Along with the ability to purchase the exclusive pre-sale tracks through the iTunes Countdown, fans who opt to purchase Play On through iTunes' Complete My Album feature will also receive an exclusive free track: Carrie’s recording of the holiday classic, “O Holy Night.”