They started when they were teenagers. Now the New Kids on the Block are in their 40s, but that's not stopping them from touring and playing arenas across the country.
The boy band made a stop in Music City on Tuesday night at Bridgestone Arena.
Thousands of fans came out to watch them take the stage.
For many, it was a chance to re-live the days of their first concert.
“New Kids on the Block was my first concert. Now this is my daughter's first concert ever. We're so excited about Boys II Men and NKOTB together,” said Bobbie Wilson.
“It was my first concert ever. So I'm trying to re-live that and have some fun,” Crystal Rumery said.
And for a few others, it was their first time to see the New Kids even though they've been fans for years.
“I didn't get to go as a little girl. So I've been three times as an adult. And it's been great,” said Amanda Brock.
They are touring with fellow boy band 98 Degrees and the R&B trio Boyz II Men.
It seems to be boy band week here in Nashville, as the British pop boy band One Direction is performing at Bridgestone Wednesday night.