Gospel

Gospel music is music that is written to express either personal or a communal belief regarding Christian life, as well as (in terms of the varying music styles) to give a Christian alternative to mainstream secular music.

Like other forms of Christian music the creation, performance, significance, and even the definition of Gospel music varies according to culture and social context. Gospel music is composed and performed for many purposes, including aesthetic pleasure, religious or ceremonial purposes, and as an entertainment product for the marketplace. However, a common theme of most Gospel music is praise, worship or thanks to God, Christ, or the Holy Spirit.

http://en.wikipedia.org/wiki/Gospel_music