Kate and Zac Hanson

The Hanson family is expanding again!

Zac Hanson and his wife, Kate, are expecting their child this fall, People reports.

"We are so happy and thankful to add more life and love to our family," Hanson, 27, told the magazine. "It's fun this time to watch the little ones so excitedly anticipating their new sibling."

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The new addition will join other brother Shepherd, 5, and sister Junia Rosa Ruth, 2. The couple married in 2006.

Hanson's brother and bandmate Isaac has two children: Everett, 6, and Monroe, 4. Group lead singer Taylor has five kids: Ezra, 10, Penelope, 8, River, 6, Viggo, 4, and Wilhelmina, 8 months.

Hanson is the youngest member of the famous family trio, who are releasing their latest album, Anthem, on June 18.