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 23Hartford, CTXL Center
June 24Trenton, NJSun National Bank Center
June 26Cincinnati, OHU.S. Bank Arena
June 27Milwaukee, WISummerfest
June 29Minneapolis, MNTarget Center
June 30Des Moines, IAWells Fargo Arena
July 2Moline, ILi wireless Center
July 3Omaha, NEQwest Center Omaha
July 5Grand Prairie, TXNokia Theatre at Grand Prairie
July 6Tulsa, OKBOK Center
July 8Broomfield, CO1st Bank Center
July 10West Valley City, UTThe E Center
July 13Everett, WAComcast Arena at Everett
July 14Portland, ORRose Garden Arena
July 17Oakland, CAOracle Arena
July 18Reno, NVReno Events Center
July 20Los Angeles, CANokia Theatre L.A. LIVE
July 21Paso Robles, CACalifornia Mid State Fair
July 24Las Vegas, NVPlanet Hollywood Theatre for the Performing Arts
July 25Glendale, AZJobing.com Arena
July 28Kansas City, MOSprint Center
July 29North Little Rock, ARVerizon Arena
July 31Memphis, TNFedExForum
August 1Lafayette, LACajundome
August 4Orlando, FLAmway Arena
August 5Sunrise, FLBankAtlantic Center
August 8Charlotte, NCTime Warner Cable Arena
August 9Duluth, GAThe Arena at Gwinnett Center
August 11Nashville, TNBridgestone Arena
August 12Indianapolis, INConseco Fieldhouse
August 14Columbus, OHSchottenstein Center
August 15Auburn Hills, MIThe Palace of Auburn Hills
August 21Toronto, ONAir Canada Centre
August 22London, ONThe John Labatt Centre
August 24Ottawa, ONScotiabank Place
August 25Albany, NYTimes Union Center
August 27Providence, RIDunkin’ Donuts Center
August 28Newark, NJPrudential Center
August 29Syracuse, NYNew York State Fair
August 31New York, NYMadison Square Garden Arena
September 1Manchester, NHVerizon Wireless Arena
September 3Essex Junction, VTChamplain Valley Fair
September 4Allentown, PAGreat Allentown Fair
September 5Timonium, MDMaryland State Fair
September 14Winnipeg, MBMTS Centre
September 16Regina, SKBrandt Centre
September 17Saskatoon, SKCredit Union Centre
September 19Edmonton, ABRexall Place
September 20Calgary, ABPengrowth Saddledome
October 19Vancouver, BCGeneral Motors Place
October 22Sacramento, CAARCO Arena
October 24Ontario, CACitizens Business Bank Arena
October 25Los Angeles, CAStaples Center
October 27Anaheim, CAHonda Center
October 28San Jose, CAHP Pavilion
October 30San Diego, CASan Diego Sports Arena
November 3Oklahoma City, OKFord Center
November 5San Antonio, TXAT&T Center
November 6Houston, TXToyota Center
November 8St. Louis, MOScottrade Center
November 10Louisville, KYKFC Yum! Center
November 11Cleveland, OHWolstein Center
November 13Norfolk, VANorfolk Scope Arena
November 14Philadelphia, PAThe Wachovia Center
November 16Boston, MATD Garden
November 17East Rutherford, NJIzod Center
November 20Atlantic City, NJBoardwalk Hall
November 22Montreal, QCBell Centre
November 23Toronto, ONAir Canada Centre
December 13Pittsburgh, PAConsol Energy Center
December 15Greensboro, NCGreensboro Coliseum
December 16Greenville, SCBi-Lo Center
December 18Miami, FLAmericanAirlines Arena
December 19Tampa, FLSt. Pete Times Forum
December 21Birmingham, ALBJCC Arena
December 23Atlanta, GAPhilips Arena