Jennifer Nettles is expecting her first baby, it has been confirmed.

The Sugarland singer and her entrepreneur husband Justin Miller have revealed they are adding to their family.

The 37-year-old Grammy winner's rep told People magazine that the couple are delighted.

"They are thrilled beyond belief," Sugarland's manager Gail Gellman told the publication.

Jennifer is due in November which will coincide with her one-year wedding anniversary. She tied the knot in Nashville wearing a stunning Alexander McQueen gown.

The country singer is currently a mentor for television show Duets alongside Kelly Clarkson, Robin Thicke and John Legend.

Jennifer met Justin in 2006 and dated for over two years before becoming engaged.