The latest headline tour for Carrie Underwood begins in little under a month, and the country songbird now has a freshly extended itinerary that...

The latest headline tour for Carrie Underwood begins in little under a month, and the country songbird now has a freshly extended itinerary that will keep her on the road through the spring.

Originally scheduled from mid-March through the end of May, Underwood’s outing will now continue for at least one more month. The Play On Tour launches March 11 at Sovereign Center in Reading, PA, and concludes June 20 at Credit Union Center in Saskatoon, SK.

A total of nine dates were added to the trek, including performances on June 12 at BJCC Arena in Birmingham, AL; June 15 at JQH Arena in Springfield, MO; and June 18 at MTS Centre in Winnipeg, MB.

Underwood’s original Play On Tour itinerary includes stops on March 19 at Boardwalk hall in Atlantic City, NJ; March 31 at BlueCross Arena in Rochester, NY; April 9 at Conseco Fieldhouse in Indianapolis, IN; and April 25 at U.S. Bank Arena in Cincinnati, OH.

Tickets are already available for the country singer’s previously announced dates. New onsales will start up on February 12 and 13 for some of the latest concert additions. Craig Morgan and special opening band Sons of Sylvia will also continue their supporting duties through the new June dates.

Underwood’s previous headlining experience was the 2008 Carnival Ride Tour. According to a statement on her official Web site, that lengthy venture included 137 performances with a total audience turnout of 1.2 million. So far, her 2010 calendar features just 54 concerts.

Carrie Underwood itinerary:
(Dates are subject to change.)

March 11 Reading, PA Sovereign Center
March 12 Albany, NY Times Union Center
March 13 Providence, RI Dunkin Donuts Center
March 15 Portland, ME Cumberland County Civic Center
March 16 Bridgeport, CT Arena at HarborYard
March 19 Atlantic City, NJ Boardwalk Hall
March 20 Mashantucket, CT MGM Grand Theater
March 21 Worcester, MA DCU Center
March 23 Hamilton, ON Copps Coliseum
March 24 Kanata, ON Scotiabank Place
March 26 Trenton, NJ Sun National Bank Center
March 27 Amherst, MA Mullins Center
March 29 Wilkes Barre, PA Wachovia Arena
March 31 Rochester, NY BlueCross Arena
April 1 Pittsburgh, PA Petersen Civic Center
April 3 Pikeville, KY Eastern Kentucky Expo Center
April 6 Columbus, OH Schottenstein Center
April 7 Peoria, IL Peoria Civic Center
April 9 Indianapolis, IN Conseco Fieldhouse
April 10 Rockford, IL Rockford MetroCentre
April 12 Ft Wayne, IN Allen County War Memorial
April 13 Saginaw, MI Dow Events Center
April 14 Lansing, MI Breslin Student Events Center
April 23 Grand Rapids, MI Van Andel Arena
April 24 Toledo, OH Lucas County Arenav
April 25 Cincinnati, OH US Bank Arena
April 27 Richmond, VA Richmond Coliseum
April 28 Charleston, WV Charleston Civic Center
April 30 Fayetteville, NC Crown Coliseum
May 1 Columbia, SC Colonial Life Arena
May 2 Augusta, GA James Brown Arena
May 4 Tallahassee, FL Tallahassee County Civic Center
May 5 Pensacola, FL Pensacola Civic Center
May 7 New Orleans, LA Lakefront Arena
May 8 Lafayette, LA Cajundome
May 10 Beaumont, TX Ford Park Events Center
May 12 Austin, TX Frank Erwin Center
May 13 Corpus Christi, TX American Bank Center
May 15 Tucson, AZ Tucson Arena
May 18 Fresno, CA SaveMart Center
May 20 Sacramento, CA ARCO Arena
May 21 Reno, NV Reno Events Center
May 22 Las Vegas, NV Orleans Arena
May 29 Everett, WA Comcast Arena
May 30 Spokane, WA Spokane Arena
June 1 Nampa, ID The Idaho Center
June 3 Broomfield, CO Odeum Colorado
June 4 Colorado Springs, CO Colorado Springs World Arena
June 12 Birmingham, AL BJCC Arena
June 13 Lexington, KY Rupp Arena
June 15 Springfield, MO JOH Arena
June 17 Fargo, ND Fargodome
June 18 Winnipeg, MB MTS Centre
June 20 Saskatoon, SK Credit Union Centre