Surprise! Little Big Town's Kimberly Schlapman, her husband Stephen and their daughter Daisy Pearl are now a family of four.

"The New Year brought our family new love," Schlapman writes on Instagram. "We're so excited to introduce you to Daisy's little sister, Dolly Grace."

According to Womanista, which obtained the information from the country star's publicist, Dolly was adopted by the Schlapmans through a "domestic adoption."

"Kimberly and Steve were able to welcome home a baby girl in this new year with a successful domestic adoption," a rep confirms to Taste of Country. "No other details can be shared at this time."

The Schlapmans have been married since November of 2006; they welcomed Daisy in July of 2007. Kimberly Schlapman was previously married, to Steven Roads, who passed away from a heart attack in 2005. At the time, she and Stephen Schlapman -- who had lost a close friend -- were "just really good friends," but they bonded over their grief and fell in love.

“I wasn’t planning on falling in love, at all,” Kimberly Schlapman admits. “I didn’t want to … I wasn’t sure that I ever would."

She adds, "I had a lot of grief left, and he just took it and listened and accepted it and was so understanding and let me talk about my late husband all the time. We still talk about him a lot, and he’s totally fine with it. He says that that made me who he fell in love with, and he never minds if I bring anything from the past up, which is just really sweet."

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