Rick Diamond / ACMA2012 / Getty Images North America 1 / 11
Rick Diamond / ACMA2012 / Getty Images North America 1 / 11

Sugarland's Jennifer Nettles better brush up on her lullabies!

The 37-year-old Grammy winner and her husband, entrepreneur Justin Miller, are set to become parents, her rep confirms to Us Weekly.

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It will be the first child for "Duets" mentor Nettles and her husband of nearly seven months.

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Nettles and Miller, a former model whom the country star dated for two years before marrying, tied the knot in a small Tennessee ceremony in November 2011. Sugarland's Kristian Bush was among the close family and friends in attendance.

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The mom-to-be was previously married to club owner Todd Van Sickle from 1998 to 2007.