Taylor Hanson and His Wife Welcome Baby No. 4

By Rennie Dyball
Originally posted Wednesday December 10, 2008 04:55 PM EST
Taylor and Natalie Hanson Photo by: Vince Flores / Celebrity Photo
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Make way for the newest Hanson! Taylor, the middle brother of the rock trio Hanson, and his wife Natalie welcomed a son, Viggo Moriah, on Tuesday in Tulsa, Okla., they tell PEOPLE exclusively. "Viggo is doing great. He is the perfect early Christmas gift," the couple says of their 8 lb., 5 oz. arrival. "We look forward to being home to enjoy the holidays with him and his very excited brothers and sister." Viggo joins older brothers Ezra, 6, and River, 2, and sister Penelope, 3. The growing Hanson family also includes their cousins, Isaac and Zac's kids, Everett, 1, Shepherd, 6 months, and Monroe, 5 months. Taylor, 25, and Natalie, 24, announced in August that they were expecting. Taylor and his bandmate brothers recently released Take the Walk, a book chronicling their experiences working to fight AIDS and poverty in Africa. They plan to get back into the studio early next year and hope to release a new album by the summer. For more on the Hanson family, click here to see the group talk about touring with their kids.