Contemporary Christian Music (or CCM; also by its religious neutral term "inspirational music") is a genre of popular music which is lyrically focused on matters concerned with the Christian faith. The term is typically used to refer to the Nashville, Tennessee-based pop, rock, and worship Christian music industry, currently represented by artists such as Avalon, BarlowGirl, Jeremy Camp, Casting Crowns, Steven Curtis Chapman, David Crowder Band, Amy Grant, Natalie Grant, Jars of Clay, MercyMe, Newsboys, Chris Tomlin, Hillsong, Michael W. Smith, Rebecca St. James, Third Day, tobyMac and a host of others. The industry is represented in Billboard Magazine's "Top Christian Albums" and "Hot Christian Songs" charts, and by Radio & Records magazine's Christian AC (Adult Contemporary), Christian CHR (Contemporary Hit Radio), Christian Rock, and Inspirational (INSPO) airplay charts, as well as the iTunes Store's "Christian & Gospel" genre.