New Kids On The Block Boston KISS Concert

New Kids On The Block concert tickets to their East Coast concerts, Boston, and Chicago have already sold out, and they've added dates to their US tour. They also recently performed at the popular annual Zootopia concert in New York on the 17th with Miley Cyrus, Jesse McCartney and the Jonas Brothers. Watch the concert:

Part 1: Step by Step, Click, Please Don't Go Girl, Right Stuff

Part 2: Summertime with fireworks!

Part 3: Audience sings 'Happy Birthday' to Jordan Knight
Then they returned to their hometown Boston to perform at the Kiss Concert, along with the Jonas Brothers, Maroon 5, and Gwen Stefani. Watch the entire May 18 concert right here:

Part 1: Step by Step, Hangin Tough, Please Don't Go Girl, Right Stuff

Part 2: Summertime

Part 3: Tonight