The Backstreet Boys have added a dozen North American dates to their DNA World Tour, plus a European leg that kicks off 10/3 in Portugal.

Produced by Live Nation, the tour commences in Las Vegas this weekend with four shows at The Colosseum at Caesars Palace. Performances have been added in Irvine, Calif., Nashville, Bethel, N.Y., and elsewhere.

Tickets for the additional North American dates go on sale Friday.

The Boys will discuss the tour on The Kelly Clarkson Show Wednesday. Moreover, the Patriot-managed/WME-booked quintet will be posting episodes of their Making of the DNA Tour doc on their YouTube page.

NEW BACKSTREET BOYS DNA WORLD TOUR DATES
(Complete routing appears here.)

6/5: Irvine, Calif., FivePoint Amphitheater
6/13: Austin, Germania Insurance Amphitheater
7/21: Bangor, Maine, Maine Savings Amphitheater
7/24: Bethel, N.Y., Bethel Woods Center for the Arts
7/26: Cincinnati, Riverbend Music Center
8/22: Portland, Moda Center
8/26: Edmonton, Rogers Place
8/27: Saskatoon, SaskTel Centre
8/29: Winnipeg, Canada Life Centre
9/1: Ottawa, Canadian Tire Centre
9/8: Nashville, Bridgestone Arena
9/9: Memphis, FedExForum

10/3: Lisbon, Altice Arena
10/4: Madrid, WiZink Center
10/6: Barcelona, Palau Sant Jordi
10/9: Amsterdam, Ziggo Dome
10/12: Berlin, Mercedes-Benz Arena
10/15: Hannover, Germany, Zag Arena
10/18: Mannheim, Germany, SAP Arena
10/20: Munich, Olympiahalle
10/22: Bologna, Italy, Unipol Arena
10/25: Hamburg, Germany, Barclaycard Arena
10/27: Zurich, Hallenstadion
10/29: Krakow, Poland, Tauron Arena
10/30: Leipzig, Germany, QUARTERBACK Immobilien ARENA
10/3: Cologne, Germany, Lanxess Arena
11/2: Budapest, Hungary, Sports Arena
11/4: Dortmund, Germany, Westfalenhallen
11/6: London, The 02