John Ira Shepherd Hanson became the latest member of the harmonic Hanson family on Tuesday. Born to Zac Hanson, 22, and his wife Kate, the baby brought the total of second generation Hansons to five. Eldest brother Issac and wife Nikki are parents to Everett, 1, and are expecting their second child next month. Taylor and his wife, Natalie, have three children, Ezra, 5, Penelope, 3, and River, 20 months.

Zac may be a young dad, but he's certainly got his priorities straight: "I am so overjoyed to meet Shepherd," he recently wrote, "There is not an audience or concert that could ever stand up to the feeling of meeting your baby for the first time."

Can I get a collective... Awwwww. Now go, see if you can get MMMBop out of your head. I know I can't.