updated 01/03/2011 AT 8:10 AM ET
•originally published 01/03/2011 AT 9:55 AM ET
The Backstreet Boys and New Kids on the Block ended 2010 on a high note with a rollicking New Year’s Eve mashup of their greatest hits in Times Square. But the guys still see room for improvement in 2011.
“I want to act more like an adult,” New Kid Joey McIntyre, 38, who will welcome his third child in May, told PEOPLE about his New Year’s resolutions.
“Being in a rock ‘n’ roll and pop world, it’s very easy to act like a kid. So, my resolution is to really act like an adult. It’s a personal inventory that I’m trying to take.”