"Not bad for a few old men," Donnie Wahlberg writes on Instagram with a photo showing off his six-pack alongside Joey McIntyre and Danny Wood

Credit: Courtesy Donnie Wahlberg

Looks like the New Kids on the Block are still Hangin’ Tough.

Donnie Wahlberg posted an Instagram photo on Saturday that had their fans screaming like they were adolescent girls once again.

In the picture, Wahlberg, Joey McIntyre and Danny Wood pull up their shirts to show off their rock-hard abs.

“Not bad for a few old men!” Wahlberg wrote. “Hard work pays!”

NKOTB is certainly working hard – both in the gym and on the road.

The band kicked off its summer tour, The Main Event, earlier this month, although Jonathan Knight injured his face Saturday in a tour bus accident.

Injury aside, Wahlberg’s new photo ensures that fans will be loving this band (forever).