The night before 98 Degrees, New Kids on the Block and Boyz II Men announced an epic national tour, the ’90s boy bands celebrated at Sons of Essex. News of the tour yesterday sent 30-something females into a tizzy, but sources said the studly singers were mostly left alone. “It was a packed restaurant, but no one bothered them,” a source told us. The group including Nick Lachey and Donnie Wahlberg “ate, drank and listened to old school hip-hop.” NKOTB will headline the tour, starting May 31.