Canadian pop sensation Justin Bieber has three weeks to go before launching his first-ever headlining tour of North America, but that hasn’t stopped him...

Canadian pop sensation Justin Bieber has three weeks to go before launching his first-ever headlining tour of North America, but that hasn’t stopped him from nearly doubling the itinerary’s length.

When Bieber announced the My World Tour in March, his calendar totaled 43 concerts and spanned from June 23 at XL Center in Hartford, CT, through September 4 at the Great Allentown Fair in Allentown, PA.

But now the 16-year-old singer has unveiled a 33-date extension that picks up September 5 at Maryland State Fair in Timonium, MD, and will keep him on the road through December 23 at Philips Arena in Atlanta, GA, where his family moved to support his career.

The new year-end itinerary includes performances on October 19 at General Motors Place in Vancouver, BC; October 25 at Staples Center in Los Angeles, CA; November 14 at The Wachovia Center in Philadelphia, PA; November 23 at Air Canada Centre in Toronto, ON; and December 13 at the new Consol Energy Center in Pittsburgh, PA.

Ticket presales for the fall tour leg begin June 9 on the singer’s official fan club, Bieber Fever. The first public onsales start June 11 for Bieber’s mid-September concerts in Canada; remaining public onsales follow on June 12.

Face values for the new tour dates vary slightly from market to market, though most fall within the $30 range on the low end and $50 range on the high end, according to current listings on Ticketmaster.com.

Bieber is supporting his first full-length record, “My World 2.0,” which dropped March 23. So far the effort has sold 1,155,000 copies, according to Neilsen Soundscan’s tally, and is quickly approaching the 1,370,000 mark of his November 2009 EP “My World.”

Justin Bieber itinerary:
(Dates are subject to change.)

June 23 Hartford, CT XL Center
June 24 Trenton, NJ Sun National Bank Center
June 26 Cincinnati, OH U.S. Bank Arena
June 27 Milwaukee, WI Summerfest
June 29 Minneapolis, MN Target Center
June 30 Des Moines, IA Wells Fargo Arena
July 2 Moline, IL i wireless Center
July 3 Omaha, NE Qwest Center Omaha
July 5 Grand Prairie, TX Nokia Theatre at Grand Prairie
July 6 Tulsa, OK BOK Center
July 8 Broomfield, CO 1st Bank Center
July 10 West Valley City, UT The E Center
July 13 Everett, WA Comcast Arena at Everett
July 14 Portland, OR Rose Garden Arena
July 17 Oakland, CA Oracle Arena
July 18 Reno, NV Reno Events Center
July 20 Los Angeles, CA Nokia Theatre L.A. LIVE
July 21 Paso Robles, CA California Mid State Fair
July 24 Las Vegas, NV Planet Hollywood Theatre for the Performing Arts
July 25 Glendale, AZ Jobing.com Arena
July 28 Kansas City, MO Sprint Center
July 29 North Little Rock, AR Verizon Arena
July 31 Memphis, TN FedExForum
August 1 Lafayette, LA Cajundome
August 4 Orlando, FL Amway Arena
August 5 Sunrise, FL BankAtlantic Center
August 8 Charlotte, NC Time Warner Cable Arena
August 9 Duluth, GA The Arena at Gwinnett Center
August 11 Nashville, TN Bridgestone Arena
August 12 Indianapolis, IN Conseco Fieldhouse
August 14 Columbus, OH Schottenstein Center
August 15 Auburn Hills, MI The Palace of Auburn Hills
August 21 Toronto, ON Air Canada Centre
August 22 London, ON The John Labatt Centre
August 24 Ottawa, ON Scotiabank Place
August 25 Albany, NY Times Union Center
August 27 Providence, RI Dunkin’ Donuts Center
August 28 Newark, NJ Prudential Center
August 29 Syracuse, NY New York State Fair
August 31 New York, NY Madison Square Garden Arena
September 1 Manchester, NH Verizon Wireless Arena
September 3 Essex Junction, VT Champlain Valley Fair
September 4 Allentown, PA Great Allentown Fair
September 5 Timonium, MD Maryland State Fair
September 14 Winnipeg, MB MTS Centre
September 16 Regina, SK Brandt Centre
September 17 Saskatoon, SK Credit Union Centre
September 19 Edmonton, AB Rexall Place
September 20 Calgary, AB Pengrowth Saddledome
October 19 Vancouver, BC General Motors Place
October 22 Sacramento, CA ARCO Arena
October 24 Ontario, CA Citizens Business Bank Arena
October 25 Los Angeles, CA Staples Center
October 27 Anaheim, CA Honda Center
October 28 San Jose, CA HP Pavilion
October 30 San Diego, CA San Diego Sports Arena
November 3 Oklahoma City, OK Ford Center
November 5 San Antonio, TX AT&T Center
November 6 Houston, TX Toyota Center
November 8 St. Louis, MO Scottrade Center
November 10 Louisville, KY KFC Yum! Center
November 11 Cleveland, OH Wolstein Center
November 13 Norfolk, VA Norfolk Scope Arena
November 14 Philadelphia, PA The Wachovia Center
November 16 Boston, MA TD Garden
November 17 East Rutherford, NJ Izod Center
November 20 Atlantic City, NJ Boardwalk Hall
November 22 Montreal, QC Bell Centre
November 23 Toronto, ON Air Canada Centre
December 13 Pittsburgh, PA Consol Energy Center
December 15 Greensboro, NC Greensboro Coliseum
December 16 Greenville, SC Bi-Lo Center
December 18 Miami, FL AmericanAirlines Arena
December 19 Tampa, FL St. Pete Times Forum
December 21 Birmingham, AL BJCC Arena
December 23 Atlanta, GA Philips Arena