If loving the Backstreet Boys and New Kids on the Block is wrong, many crowds don’t want to be right. That seems the best way to explain the enthusiasm of the mainly female crowds that have begun to jam arenas to see the two boy bands that are now all grown up.

“I always say we are entertainers,” said Howie Dorough of the Backstreet Boys. “We have been tied up with this band for many years and are proud to put on … quality shows for families of all ages. … People like to live in the moment and also live in certain songs and memories.”