Urban contemporary, also known as urban pop, or just simply urban, is a music radio format. The term was coined by New York radio DJ Frankie Crocker in the early to mid-1970s. Urban contemporary radio stations feature a playlist made up entirely of genres such as R&B, pop-rap, British R&B, quiet storm, adult contemporary, hip hop, Latin music such as Latin pop, Chicano R&B and Chicano rap, and Caribbean music such as reggae. Urban contemporary was developed through the characteristics of genres such as R&B and soul. Largely a US phenomenon, virtually all urban contemporary formatted radio stations in the United States are located in cities that have sizeable African-American populations, such as New York City, Washington, D.C., Detroit, Atlanta, Miami, Chicago, Cleveland, Philadelphia, Montgomery, Memphis, St. Louis, Newark, New Orleans, Cincinnati, Dallas, Houston, Oakland, Los Angeles, Trenton, Flint, Baltimore, Boston, Birmingham, Savannah, and Jackson. Urban contemporary includes the more contemporary elements of R&B and may incorporate production elements found in urban pop, urban Euro-pop, urban rock, and urban alternative.