NKOTBSB Kick Off Tour With Performance on 'Today'

It is a combination that would have made seventh grade girls around the country swoon in 1994, and then again in 1998. New Kids on the Block and Backstreet Boys, now known as NKOTBSB, officially start their tour tonight in Washington, D.C., but they gave fans a preview with a performance Friday morning on 'Today' (weekdays, 7AM on NBC).