NKOTBSB is a supergroup consisting of two American boy bands, New Kids on the Block and Backstreet Boys. NKOTBSB may also refer to: NKOTBSB (album) NKOTBSB Tour This disambiguation page lists articles associated with the title NKOTBSB.If an internal link led you here, you may wish to change the link to point directly to the intended article.