Contemporary Christian Music
Contemporary Christian Music (also known as CCM) is a term generally applied to Christian-themed pop, rock, and worship music. The term is most often associated with the Nashville, Tennessee Christian music industry based largely in Nashville’s Music Row. The genre is best represented by artists and groups such tobyMac, Casting Crowns, Avalon, Amy Grant, Newsboys, and Third Day.
The origins of CCM lie in the 1960s Jesus Movement, where rock and roll was adapted to fit Christianity. From the 1980s to the 1990s, CCM became mainstream. In the present day, it outsells several genres, such as jazz, classical music, Latin, and New Age. 
Some Christians may consider CCM to be wrong or unholy in some way because it is based on the questionable genre of rock and roll. This is not, however, the prevailing viewpoint.