The Secular, The Sacred, & The Law of Love

At Christmas time, the line between the secular and sacred often becomes blurred in the minds of many Christians. This is especially true with music as Christmas carols and hymns are sung by both secular and Christian artists. A recent popular version of "Mary Did You Know" by a secular singing group has caused a stir and some controversy. Should it have? Does sin in the life of a performer negate the beauty of the performance?