Details about the collaboration between New Kids on the Block and the Backstreet Boys are beginning to materialize. This week the grown-up kings of boy-band pop confirmed the first five dates of their joint NKOTBSB Tour, slated for summer 2011.

The trek's North American calendar presently opens with a June 9 show at Air Canada Centre in Toronto, ON. The two troupes will then perform on June 11 at Nassau Coliseum in Uniondale, NY, and June 12 at Izod Center in East Rutherford, NJ. The first confirmed Midwest stop falls days later on June 17 at United Center in Chicago, IL, with West Coast touchdown set for July 1 at the Staples Center in Los Angeles, CA.

New Kids on the Block has postponed the start of its much anticipated summer tour from May 28 to June 4 due to production delays, according to tour promoter Live Nation. The change also caused the cancellation of five concerts from May 29 to June 3 and the relocation of its June 7 concert at Nissan Pavilion to the Patriot Center. The tour's original kick-off date on May 28 in Atlanta, GA, at Lakewood Amphitheatre has been moved to June 4.

Cancelled concerts are May 29 at Verizon Wireless Amphitheater in Birmingham, AL; May 30 at Ford Amphitheatre in Tampa, FL; May 31 at Cruzan Amphitheatre in West Palm Beach, FL; June 2 at Verizon Wireless Amphitheatre in Charlotte, NC; and June 3 at Time Warner Cable Music Pavilion in Raleigh, NC.

A few weeks after announcing the extension of their reunion tour, original boy band New Kids on the Block (NKOTB) have rolled out more North American dates. The 16 additional concerts will take the vocal group coast-to-coast and through Canada, closing May 15-18 aboard the Carnival Imagination cruise to the Bahamas, departing from Miami, FL.

Some of the recently announced dates include March 18 show at the Richmond Coliseum in Richmond, VA, an April 6 concert at Wells Fargo Arena in Des Moines, IA, and an April 16 performance at Save Mart Center in Fresno, CA.

Those New Kids on the Block (NKOTB) certainly have energy as their North American reunion tour now totals 48 concerts in a little over 10 weeks with not many open dates. Kicking off with two nights in Toronto, ONT on September 18, it then goes to Montreal, QUE for a show on September 20 and heads back to Toronto for the following night. Playing mostly arenas with a few the of the obligatory casinos thrown in, the tour wraps on December 26 in Los Angeles, CA. Natasha Bedingfield is opening the entire tour.

On tour, NKOTB will be promoting their forthcoming, as yet unnamed album, due in the fall, as well as playing their old hits. The first single, "Summertime," has already climbed the Billboard Pop 100 chart and is being streamed on their MySpace page.

New Kids on the Block (NKOTB), the boy band that helped launch the boy band craze, has reunited 14 years after disbanding, and are planning to perform their first reunion show at Z100’s May 17 Zootopia concert at the Izod Center in East Rutherford, NJ. The concert will also feature Miley Cyrus, The Jonas Brothers and Simple Plan.

The group confirmed their reunion with an appearance on “The Today Show” on April 4 and will perform on the show on May 16. NKOTB is currently working on their first new album since 1994 that should be released this summer and followed in the fall by an already hotly anticipated international tour.