Music history of the United States in the 1950s blues and gospel music; with country and western and Pop. In 1951, Cleveland, Ohio disc jockey Alan Freed began playing rhythm and blues music for a multi-racial audience, and is credited with first using the phrase "rock and roll" to describe the music, though the terms "rocking" and "rolling" were being used in boogie-woogie and religious music for decades before that. The 1950s saw the growth in popularity of the electric guitar (developed and popularized by Les Paul). Paul's hit records like "How High the Moon," and "The World Is Waiting for the Sunrise," helped lead to the development of
Mobile disc jockey American Disc Jockey Awards Show was established, and its first edition was held in Las Vegas, Nevada. Since then, thirteen mobile DJs have been elected to the American Disc Jockey Hall of Fame. The thirteen members include John Rozz, Al Lampkin, Joe Martin, Robert A. Lindquist, Jon Michaels, Mike Buonaccorso, Sid Vanderpool, Bobby Morganstein, John Roberts, Ken Knotts, Ray "Ray Mar" Martinez, Cesar Cosio, and Bernie Howard-Fryman. The American Disc Jockey Awards Show annually recognizes and honors individuals who have given of themselves to benefit their community or a charitable cause in the name of the ADJA or the DJ