Country singer Brad Paisley and his wife, According to Jim star Kimberly Williams-Paisley, welcomed a son Friday, their reps confirm to

Check out some of the most famous baby bumps from this past year.

"The healthy baby boy was born this morning at a Nashville-area hospital," their reps told Us in a statement. "Mother and baby are resting comfortably."

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They do not yet have a name for the newborn, which is the couple's second child. They are also parents to 2-year-old son William Huckleberry.

Paisley, 36, and Williams-Paisley, 37, began dating nine years ago before they married in 2003.

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