New Kids On The Block took part in an AOL Sessions performance before an audience of screaming female fans, performing ‘Step By Step’, ‘Single’, ’2 In The Morning’ and ‘Summertime’. The reunited Boston boy band also did a video Q&A session, discussing their new album ‘The Block’, paving the way for the boy bands that followed them, and the reaction from their fans after the long hiatus. Watch the ‘Single’ performance below and check out the rest at AOL.com.