The super boy-band knows where their cultural capital lies. Yes, it's exciting to see these icons come together in a new way. The two new tracks here are very pleasant pop fare that both proves NKOTB and BSB's ability to participate in the contemporary R&B/pop landscape and reminds us they helped create it. The mash-up also makes a strong case for how fluidly they go together. But, come on. What that unwieldy new acronym really stands for is nostalgia and those savvy Boys on the Block acknowledge it by front-loading their joint album with their biggest, most beloved, most squeal-worthy hits.