Justin Bieber Announces 'Believe' World Tour!

Justin Bieber makes an appearance on The Ellen DeGeneres Show to make a big announcement on an episode airing Wednesday (May 23).

The 18-year-old singer told the audience and millions of viewers that he is about to embark on a world tour to support his new album Believe!

“So Justin and I talked before the show and he said, I want to announce my tour and I said well, if you’re going to announce your tour. You should at least let everyone here have a chance to go. So thanks to American Express everyone here [in the studio audience] is getting a pair of tickets,” Ellen said.

Justin presented Ellen with a gift during the show – a “Girlfriend” jacket to match his “Boyfriend” jacket.

FYI: Ticket presales start at noon TODAY (May 23) and Thursday (May 24) for AmEx cardholders.

Click inside to watch the graduation ceremony that Ellen threw for Justin and for the full list of tour dates…

9/29 – Glendale, AZ @ Jobing.com Arena
9/30 – Las Vegas, NV @ MGM Grand
10/2 – Los Angeles, CA @ STAPLES Center
10/3 – Los Angeles, CA @ STAPLES Center
10/5 – Fresno, CA @ Save Mart Center
10/6 – Oakland, CA @ The Oracle Arena
10/8 – Portland, OR @ Rose Garden
10/9 – Tacoma, WA @ Tacoma Dome
10/12 – Calgary, AB @ Scotiabank Saddledome
10/15 – Edmonton, AB @ Rexall Place
10/16 – Saskatoon, SK @ Credit Union Centre
10/18 – Winnipeg, MB @ MTS Centre
10/20 – Minneapolis, MN @ Target Center
10/21 – Milwaukee WI @ BMO Harris Bradley Center
10/23 – Rosemont, IL @ Allstate Arena
10/24 – Rosemont, IL @ Allstate Arena
10/26 – Kansas City, MO @ Sprint Center
10/27 – St. Louis, MO @ Scottrade Center
10/29 – Dallas, TX @ American Airlines Center
10/30 – Houston, TX @ Toyota Center
11/1 – Memphis, TN @ FedExForum
11/2 – Louisville, KY @ KFC Yum! Center
11/4 – Philadelphia, PA @ Wells Fargo Center
11/5 – Washington D.C. @ Verizon Center
11/9 – East Rutherford, NJ @ IZOD Center
11/10 – Boston, MA @ TD Garden
11/12 – Brooklyn, NY @ Barclays Center
11/20 – Pittsburgh, PA @ CONSOL Energy Center
11/21 – Auburn Hills, MI @ The Palace of Auburn Hills
11/23 – Kanata, ON @ Scotiabank Place
11/26 – Montreal, QC @ Bell Centre
11/28 – New York, NY @ Madison Square Garden
12/1 – Toronto, ON @ Rogers Centre
1/5 – Salt Lake City, UT @ EnergySolutions Arena
1/7 – Denver, CO @ Pepsi Center
1/9 – Tulsa, OK @ BOK Center
1/10 – N. Little Rock, AR @ Verizon Arena
1/12 – San Antonio, TX @ AT&T Center
1/15 – New Orleans, LA @ New Orleans Arena
1/16 – Birmingham, AL @ BJCC Arena
1/18 – Nashville, TN @ Bridgestone Arena
1/19 – Greensboro, NC @ Greensboro Coliseum
1/22 – Charlotte, NC @ Time Warner Cable Arena
1/23 – Atlanta, GA @ Philips Arena
1/25 – Orlando, FL @ Amway Center
1/26 – Miami, FL @ American Airlines Arena