Spears' official Web site announced on Wednesday that the "Goodies" singer and the daughter of '80s pop-music icon James DeBarge will be joining the "Womanizer" singer when her Circus tour returns to North America following its jaunt overseas.

Ciara has already broken herself in on the Circus tour, having opened up for Spears during her London dates.

"Joining Britney Spears for her Circus tour will be an amazing and surreal experience for me," says DeBarge. "I have been dreaming of an opportunity like this forever, and can't wait."

See the dates for the Circus tour's upcoming North American arm below.

August 20                   Hamilton, ON                  Copps Coliseum
August 21                   Ottawa, ON                     Scotiabank Place
August 24                   New York, NY                 Madison Square Garden
August 25                   New York, NY                 Madison Square Garden
August 29                   Boston, MA                    TD Banknorth Garden
August 30                   Philadelphia, PA             Wachovia Center
September 1               Orlando, FL                    Amway Arena
September 2               Miami, FL                       AA Arena
September 4               Atlanta, GA                    Philips Arena
September 5               Greensboro, NC            Greensboro Coliseum
September 8               Detroit, MI                      The Palace of Auburn Hills
September 9               Chicago, IL                    Allstate Arena
September 11             Des Moines, IA              Wells Fargo Arena
September 12             Grand Forks, ND           Alerus Center
September 15             Tulsa, OK                      BOK Center
September 16             Houston, TX                  Toyota Center
September 18             Dallas, TX                      American Airlines Center
September 19             Bossier City, LA             CenturyTel Center
September 21             El Paso, TX                   Don Haskins Center
September 23             Los Angeles, CA           STAPLES Center
September 26             Las Vegas, NV              Mandalay Bay Events Center
September 27             Las Vegas, NV              Mandalay Bay Events Center