Shania Twain readies new single

Today Is Your Day will be exclusively available on iTunes immediately following the world premiere on OWN starting Sunday, June 12 at 11 p.m. eastern/Pacific. Mercury Nashville will service the song to country radio stations after the show's airing.

The song, produced by Twain and Nathan Chapman, is the first song Twain has written solo in six years, and the creation process for the single was documented throughout the docu-series "Why Not? with Shania Twain" currently airing Sundays on OWN.

Twain is seen as she works through the lyrics, meets with vocal doctors and a grief counselor and embarks on unexpected adventures throughout North America that test her courage and self-confidence in an effort to reclaim her life.

In an all new episode, titled "Finding My Voice," airing this Sunday, June 5 at 10 p.m. eastern/Pacific, Twain has a one-on-one vocal training session with vocal coach Eric Vetro before meeting with music producer David Foster to discuss producing her new single.

Twain then reaches the end of her tour in the finale episode titled "Endless Love," as she marries Frederic Thiebaud and shares new wedding footage from the Bahamas. As Twain faces her final challenge, recording a duet of Endless Love with Lionel Richie, she reflects on the journey that has brought her to this point in her life.