Previously announced opening act Kristinia DeBarge will join the tour for all dates; while up-and-coming acts Girlicious and One Call will appear in select cities

19-year old star Jordin Sparks rose to fame in 2007 when she became the youngest contestant ever to win American Idol. She performed the national anthem to an audience of nearly 100 million viewers at Super Bowl XLII, and was named Favorite Adult Contemporary Artist at the American Music Awards. Her current sophomore album, Battlefield, is in stores now and features the title track as Sparks' latest single. Her previous release, Jordin Sparks, featured platinum-certified Top 10 single, "Tattoo," and smash hit single "No Air."

"Britney's show is incredible and for me to be a part of it is a great opportunity," said Sparks.

"The Circus Starring Britney Spears," a dazzling display of music, dance, magic and theatrics, kicked off in New Orleans on March 3 and is the highest grossing tour of 2009 in North America to date. With its cast of nearly 50 dancers, magicians, clowns and acrobats, and a traveling staff of over 200, the 50 million dollar extravaganza includes an unprecedented 60 tons of equipment in 34 trucks for what has already proven to be a sheer electrifying musical event. According to Reuters, "The pop star...pulled out all the stops before a sell-out crowd of 16,400 to launch her much anticipated world tour."

"The Circus Starring Britney Spears" Tour Dates:

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 26 New York, NY Madison Square Garden * + ^
August 29 Boston, MA TD Garden * + ^
August 30 Philadelphia, PA Wachovia Center + ^
September 1 Orlando, FL Amway Arena * +
September 2 Miami, FL American Airlines 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 24 San Diego, CA San Diego Sports Arena * +
September 26 Las Vegas, NV Mandalay Bay Events Center * +
September 27 Las Vegas, NV Mandalay Bay Events Center * +