The arena trek will help promote her new album, "Circus," due December 2 via Jive Records.
The first single, "Womanizer," is expected to leap into the upper reaches of the Billboard Hot 100 this week after first-week download sales are factored into the chart.
The chart will be published on Thursday.
Spears' 2004 tour grossed more than $34 million, according to Billboard Boxscore. In the ensuing years, her career was derailed by a litany of personal and professional woes.
