It may have been 15 years since their last performances together, but New Kids On The Block are showing their comeback is well and truly underway.
Fans came out of the woodwork for their concert at New York's Rockefeller Plaza and, with another set for tomorrow in Boston, the early 90s boyband are clearly demonstrating they still have the Right Stuff.
Jordan and Jonathan Knight, Joey McIntyre, Danny Wood and Donnie Wahlberg will be seeking to cash in on their new success with a major North American tour this September and October.
Starting in Toronto, Canada they will promote their new record, out at the same time, with comeback single Summertime the warm-up.
The band members, who are all not quite as young as they used to be, have admitted getting back into the swing of things have proved something of a challenge.
"It's like riding a mountain bike," they said.
"The recording was easier. Then we started dance rehearsals - that took a few days for all of us to get acclimated. We're being tested though, today is a test of our determination."
NKOTB rung up 70 million album sales during the late 80s and early 90s, with Hangin' Tough their biggest seller.