Clear Channel has done well in the rating books for the Hallelujah formats in several southern markets like Jackson, Little Rock, Memphis and Montgomery. They usually do not do well in billing though and have exited Biloxi and Birmingham for that reason.
The Contemporary Christian music station Clear Channel owned in Nashville was actually launched by AMFM before merging with Clear Channel. The station did not fail miserably but rather CC found a big hole in the market for another Urban which they have taken advantage of to a pretty big success. Nashville has the popular WAY FM to serve the the Christian music needs in the market plus Salem has their satellite service on the radio dial as well.