Country superstar Shania Twain is preparing to bow out of touring with one last big trek across North America.

The hitmaker wrapped up her two-year Las Vegas residency in December (14) and now she is getting ready to embark on her first road show in 11 years - but it will serve as a farewell tour for fans.

Announcing the news on U.S. breakfast show Good Morning America on Wednesday (04Mar15), she says, "I'm finally, after 11 years, I'm going back on tour. It's been a long time...

"This is going to be a big tour for me because it's going to be my last... so I'm gonna make the most of it... It's a celebration tour for me...

"I really feel that Las Vegas, the Still The One show, was a huge mountain to climb for me. I took that challenge on. I not only got through it, I enjoyed it, it was a huge reward and I see the upcoming tour as a celebration of that and I just feel like I'm ready to hang my hat up in that regard.

"I wanna go out with a bang... It's gonna be a kick-a**, rocking show."

The Rock This Country tour will kick off in Seattle, Washington in June (15) and take in 48 cities, wrapping up in Fresno, California on 23 August (15), five days before Twain's 50th birthday.

Twain admits approaching the age milestone while touring will also impact her show, adding, "It's all gonna come together. I'll be an emotional wreck!"

However, Twain will not be turning her back on music altogether - she is planning to release her long-awaited follow-up to 2002's Up! album after the tour.

She promises, "I want it to come out when I'm 50, so it will happen."