This could be the beginning of a Hanson trio for a new generation.

Isaac Hanson and his wife Nikki welcomed their third child on Tuesday, March 11, their rep confirms to PEOPLE exclusively.

Weighing 7 lbs., 15 oz., Nina Odette joins the couple’s sons Clark Everett, who turns 7 next month, and James Monroe, 5½, at home in Tulsa, Okla.

“After more than five years of not having a baby in the house, having our first little girl is going to be fun,” the musician, 33, tells PEOPLE. “I know that Everett and Monroe are excited about being big brothers.”

Isaac, who’s the oldest of three Hanson brothers, is currently preparing to continue the group’s world tour in support of their sixth studio album, Anthem.

Younger brother Zac, 28, and wife Kate are parents to three children themselves: Shepherd, 5½, Junia, 3, and Abraham, 5 months, while middle brother Taylor and wife Natalie have five children: Ezra, 11, Penelope, 9 next month, River, 7½, Viggo, 5, and Wilhelmina, 17 months.

22 Mar 2014      ♥ 69     source     /    Isaac Hanson Hanson Anthem era candid 


can’t get much more 90s than this

15 Feb 2014      ♥ 17     source     /    Isaac Hanson Taylor Hanson Zac Hanson Hanson red carpet Middle of Nowhere 
15 Feb 2014      ♥ 36     source     /    Isaac Hanson Taylor Hanson Zac Hanson Hanson candid Anthem 

pit stop, photo op. @hansonmusic

15 Feb 2014      ♥ 85     source     /    Hanson Isaac Hanson Taylor Hanson Zac Hanson Anthem candid 


06 by PurpleKiaris on Flickr.

07 Feb 2014      ♥ 24     source     /    Isaac Hanson Zac Hanson Hanson concerts Anthem 


07 Feb 2014      ♥ 59     source     /    Isaac Hanson Taylor Hanson Hanson candids Anthem 


From a fb group.

07 Feb 2014      ♥ 27     source     /    Isaac Hanson Taylor Hanson Zac Hanson Hanson photoshoots 
02 Feb 2014      ♥ 21     source     /    Isaac Hanson Taylor Hanson Zac Hanson Hanson Middle of Nowhere photoshoots 
28 Jan 2014      ♥ 48     source     /    Isaac Hanson Taylor Hanson Zac Hanson Hanson Middle of Nowhere photoshoots 
03 Jan 2014      ♥ 64     source     /    Isaac Hanson Taylor Hanson Zac Hanson Hanson walks Anthem 


Take the Walk, Cologne

03 Jan 2014      ♥ 83     source     /    walks Isaac Hanson Zac Hanson Hanson concerts Anthem 

Syracuse, NY

01 Jan 2014      ♥ 48     source     /    Isaac Hanson Taylor Hanson Hanson concerts Anthem