NEW YORK • Life's About To Get Good again, Shania Twain declares in her new single.

The crossover country star, whose huge success in the 1990s was followed by troubled years in which she lost her voice and her husband, is making a comeback after 15 years.

The top-selling woman in country music history will release a fifth album, Now, on Sept 29 - her first studio release since 2002's Up!.

The Canada-born singer has unveiled the first single, Life's About To Get Good, a buoyant tune about surviving setbacks that, true to her style, is driven by a pop rhythm.

The 51-year-old came up with the songs on the album after working previously with her then husband, producer Mutt Lange. The two divorced after he began a relationship with her close friend, she said.

Faced with emotional turmoil and dysphonia, a vocal ailment, she said she lost her voice and required extensive therapy.

Twain, who has returned to live performances, had to overcome fear to work on Now.

"Of course, it was scary coming out after all these years and writing an album on my own, which I did on purpose to push myself and find and rediscover myself as a songwriter," she said over the weekend on NBC's Today show.

The five-time Grammy winner has sold more than 75 million albums as she found success beyond country music with songs such as That Don't Impress Me Much (1997) and You're Still The One (1997).

AGENCE FRANCE-PRESSE