One of the most famous religious Christmas carols of all time was written by someone who wasn't religious at all. Dan O'Donnell tells the fascinating story of "O Holy Night."

Dan O'Donnell tells the story of how the bestselling Christmas song of all time was recorded in just 18 minutes.

A husband and wife's private love song becomes an Oscar-winning worldwide sensation. Dan O'Donnell explains how.

Dan O'Donnell explains how a tune originally written for Thanksgiving eventually became the first song ever broadcast from outer space.

Dan O'Donnell tells the story of how two friends, a guitar, and a broken church organ created one of the most beloved Christmas songs of all time.