EXCLUSIVE: Shania Twain Dishes on New Album and Reveals When We'll Hear the First Single!

The country music superstar opened up to ET on her upcoming album and single.

Get ready for the summer of Shania Twain!

The country music superstar is gearing up to release new music, and she gave ET's Sophie Schillaci all the juicy details Monday night on the red carpet shortly before her appearance on NBC's The Voice.

RELATED: EXCLUSIVE: Shania Twain Reveals She'd 'Love' to Collaborate With Nick Jonas

"I have a new single coming out in June," Twain, 51, said. "So I'm kicking off the summer with a new song, and then I'm finishing the summer with the release of the album."

The "Man! I Feel Like a Woman!" singer added that it's going to be "the best summer ever!"

"It's been such a long time since I put out a studio album," she told ET of the years since the release of 2002's Up!. "I wrote the whole album myself, so it's a real statement of independence."

Twain, who is headlining the Stagecoach Festival -- a country music version of Coachella -- this weekend, said she plans to debut the single on Saturday at the event.

EXCLUSIVE: Shania Twain Stuns at CMT Artists of the Year Event, Reveals How She Stays in Incredible Shape

The GRAMMY winner added that she was initially nervous about the album, but now that it's complete, she feels "relieved."

"Creative independence is something that I haven't had in a really long time," Twain admitted. "It was really scary taking that leap. The album's done, and I feel really good. The first single is so optimistic and hopeful -- regardless of how bad life could get. I really needed that message."

MORE: Drake Calls Shania Twain His 'Woman Crush' -- See Their Backstage Pic

Songwriting and making music is "like therapy" for Twain, who also sees it as a form of self-expression.

"It's my drug, my emotional outlet," she stated. "Whether it's sadness, anger, happiness, inspiration, whatever -- it all comes out best in my songwriting."

For more on the country music star, watch the video below.

UPDATE: Twain's camp announced on Tuesday that the new single is titled "Life's About to Get Good" and that the full-length album, her first in 15 years, will be released in September.