MMMBaby! Zac Hanson welcomes 4th child, Mary Lucille Diana — see the photo

/ Source: TODAY

The Hanson family is little bigger!

Zac Hanson, best known as one-third of the '90s-to-now pop act that shares his surname, and wife Kate just welcomed their fourth child — a baby girl.

Courtesy of Zac Hanson

“We are overjoyed to share the arrival of Mary Lucille Diana Hanson," the multi-talented musician told TODAY in a statement. "It is such an inspiration to meet her and to imagine all of the adventures we will take together as a family of six.”

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The little one, who'll go by Lucille, was born on August 6 in Tulsa, Oklahoma, weighing in at 8 pounds, 4 ounces.

She now joins the rest of the brood back home, which includes brothers Shepherd (8) and Abraham (2), as well as big sis Junia (5).

In other words, more than enough members to start a band of their own one day!

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