An umbrella term for several types of music, all with Christian lyrics (though in Contemporary Christian Music, the Christianity of some artists isn't worn on the sleeve). In its purest, less-hyped form(s), there's Southern Gospel, tied to the family tree of older forms of country music (including bluegrass) and there's black gospel, tied to the rock and roll and rhythm and blues family trees. Many artists over the years have done both gospel and secular pop.