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Vanessa Carlton welcomes a daughter

Vanessa Carlton is a mom.

The singer and her husband, Deer Tick singer-guitarist John McCauley, welcomed a daughter on Tuesday.

"Sid the Kid, whoa!!!" McCauley captioned an Instagram photo showing holding the baby girl.

Sid the Kid, whoa!!!

A photo posted by John J McCauley III (@johnjmccauley) on

Carlton added in a tweet, "Thanks for all the sweet wishes on our daughter. She's the quiet observer. We are in for it."

The singer, 34, married McCauley in December 2013 and confirmed her pregnancy back in June.

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