With her massive comeback tour set to unfold in October, Tina Turner [ tickets ] has announced a release date for an upcoming greatest hits album and "digital companion" to the trek.

Due in stores Sept. 30, the day before Turner's world tour launches in Kansas City, MO, the 18-track "Tina!" features songs the legendary singer plans to perform during her upcoming concerts, including hits from throughout her career and two new and exclusive tracks, "It Would Be a Crime" and "I'm Ready."

The outing is set to hit 23 North American cities through December, jumping to Europe for another run of shows early next year. US and Canadian dates are below, while Turner's overseas dates can be found at her website.

The 68-year-old performer announced her retirement from touring eight years ago, but after singing "Proud Mary" with Beyonce at February's Grammy Awards, she threw her fans a curveball, announcing details of the planned comeback trek on the May 12 episode of "The Oprah Winfrey Show."

Turner's most recent studio album, "Twenty Four Seven," surfaced in 1999. Last fall, the eight-time Grammy winner released "Celebrate: The Best of Tina Turner," a 95-minute DVD taken from a 1999 concert that celebrated her 60th birthday.

The legendary singer has sold 170 million records during her career, according to her bio, and is one of the most successful female rock artists of all time.