With the birth of rock and roll and its promotion by disc jockeys such as Alan Freed, a new interest was taken in the unrestricted superpower airwaves that were available in Mexico. Alan Freed had originally called himself the "Moondog" after hearing the name used by an experimental street musician in New York City. Freed not only adopted the name but used the recording of a howl to give his early broadcasts a unique character since he was featuring African-American music that was getting a great reception from America's White teenagers.