John Paul White and Joy Williams of The Civil Wars attend the CMT Music awards on June 6, 2012 in Nashville, Tennessee. Credit: Jeff Kravitz/FilmMagic

Break out the blue cigars!

Joy Williams, one-half of the band The Civil Wars, welcomed her first child -- a boy named Miles Alexander -- Saturday in Nashville.

"Now I really know what love at first sight means after meeting my son, Miles Alexander. Born yesterday, all happy and healthy," Williams, 29, confirmed via Twitter Sunday.

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Later, she added: "Thanks for all the thoughts, prayers and well wishes about Miles' arrival. Deliriously happy."

Miles is the first child for Williams and her husband Nate Yetton, who manages The Civil Wars.