New Kids on the Block & Backstreet Boys (NKOTBSB Tour) June 25, 2011

The collaborative outfit will perform at the legendary ballpark June 11 and have pushed the originally scheduled stop in Uniondale, NY, to the tour closer July 31. All June 11 tickets will be honored at July 31 show and full refunds are available at the point of purchase, according to a press release.

In the coming weeks, the supergroup will reveal dates and venues for shows in a handful of other markets, including Grand Rapids, MI; Buffalo, NY; Baltimore, MD; Ottawa, Ontario; Montreal, Quebec; Hamilton, Ontario; and London, Ontario. Third-night concerts will also be added in New York City and Chicago.