Origins of rock and roll that inspired Alan Freed to coin the phrase "rock and roll" to refer to the music he played. Freed first started playing the music in 1951, and by 1953 the phrase "rock and roll" was becoming used much more widely to market the music beyond its initial black audience. The practitioners of the music were young black artists, appealing to the post-war community's need for excitement, dancing and increasing social freedoms, but the music also became very attractive to white teenagers. As well as "rocking" rhythm and blues songs, such as the massively successful and influential "Rocket 88" recorded by
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