Since winning the title of “American Idol” in 2005, Carrie Underwood has built a reputation off her chart-topping radio hits, numerous industry award wins,...

Since winning the title of “American Idol” in 2005, Carrie Underwood has built a reputation off her chart-topping radio hits, numerous industry award wins, and rigorous cross-country tours.

With a second Entertainer of the Year Award from the Academy of Country Music under her belt, the country chanteuse is proving that 2010 will be no different. Underwood has added more than 45 dates to the 2010 Play On Tour that kicked off in early March.

The new fall leg of the Play On Tour will pick up September 23 at Rose Garden Arena in Portland, OR, and is scheduled through December 19 at Pengrowth Saddledome in Calgary, AB.

The award-winning singer’s year-end itinerary includes gigs on October 13 at Bridgestone arena in Nashville, TN; October 30 at the Time Warner Cable arena in Charlotte, NC; November 15 at Prudential Center in Newark, NJ; and December 5 at Sioux Falls Arena in Sioux Falls, SD.

The newly expanded calendar also features four more performances north of the border. In addition to the tour’s closing night, Underwood will play for Canadian audiences on November 3 at Air Canada Centre in Toronto, ON; December 16 at General Motors Place in Vancouver, BC; and December 18 at Rexall Place in Edmonton, AB.

Public ticket sales for the new tour dates begin April 24. Face values will vary only slightly from market to market, with the cheapest seat prices set between $30 to $35 and the most expensive seats ranging from $50 to $55.

Billy Currington and Sons of Sylvia will serve as the fall tour’s special guests. Additional tour and ticketing details are available on Underwood’s official Web site.

Underwood’s spring tour leg started on March 11 in Reading, PA, and continues this week with an April 23 headline show at Van Andel Arena in Grand Rapids, MI. The final date of the spring outing comes in the form of a June 20 gig at Credit Union Centre in Saskatoon, SK.

The country singer-songwriter is on the road supporting her third studio record, “Play On,” released in November 2009. The album debuted at No. 1 on the Billboard 200 and has spawned two No. 1 country singles so far — “Cowboy Casanova” and “Temporary Home.” The album’s next single, “Undo It,” is slated for official radio release on May 24.

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

September 25 Portland, OR Rose Garden Arena
September 27 San Jose, CA HP Pavilion at San Jose
September 28 Stockton, CA Stockton Arena
September 29 Bakersfield, CA Rabobank Arena
October 1 San Diego, CA San Diego Sports Arena
October 2 Los Angeles, CA Hollywood Bowl
October 3 Glendale, AZ Jobing.com Arena
October 6 Houston, TX Toyota Center
October 7 San Antonio, TX AT&T Center
October 9 Dallas, TX American Airlines Center
October 10 Tulsa, OK BOK Center
October 12 North Little Rock, AR Verizon Arena
October 13 Nashville, TN Bridgestone Arena
October 15 Moline, IL iWireless Center
October 16 Kansas City, MO Sprint Center
October 17 Omaha, NE Qwest Center Omaha
October 19 Wichita, KS INTRUST Bank Arena
October 20 Oklahoma City, OK Ford Center
October 22 Memphis, TN FedExForum
October 23 Mobile, AL Mobile Civic Center
October 25 Tampa, FL St. Pete Times Forum
October 26 Jacksonville, FL Veterans Memorial Arena
October 27 Duluth, GA The Arena at Gwinnett Center
October 29 Greensboro, NC Greensboro Coliseum Complex
October 30 Charlotte, NC Time Warner Cable Arena
November 1 Cleveland, OH Wolstein Center
November 3 Toronto, ON Air Canada Centre
November 5 Uniondale, NY Nassau Veterans Memorial Coliseum
November 6 Manchester, NH Verizon Wireless Arena
November 12 Roanoke, VA Roanoke Civic Center
November 13 University Park, PA Bryce Jordan Center
November 15 Newark, NJ Prudential Center
November 16 Baltimore, MD 1st Mariner Arena
November 29 Auburn Hills, MI The Palace of Auburn Hills
December 1 St. Louis, MO Chaifetz Arena
December 2 Evansville, IN Roberts Stadium
December 4 Des Moines, IA Wells Fargo Arena
December 5 Sioux Falls, SD Sioux Falls Arena
December 7 Rapid City, SD Rushmore Plaza Civic Center
December 8 Casper, WY Casper Events Center
December 10 Billings, MT Rimrock Auto Arena
December 12 Bozeman, MT Brick Breeden Fieldhouse
December 14 Yakima, WA Yakima Valley SunDome
December 16 Vancouver, BC General Motors Place
December 18 Edmonton, AB Rexall Place
December 19 Calgary, AB Pengrowth Saddledome