As acts such as Run-DMC, Grandmaster Flash, and the Beastie Boys became popular in the US, KDAY brought their sounds to a new audience on the West Coast.
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The studio and transmitter site were moved to a new facility on North Alvarado St. north of downtown L.A. At this time, it switched to a Top 40 format, then around 1972 went to an album rock format, designed by Bob Wilson, who would later launch the media magazine Radio & Records.