The Dance/Mix Show Airplay (formerly Hot Dance Airplay) chart is a monitored chart in Billboard Magazine. It tracks airplay from radio stations in the United States. The chart was started on August 16, 2003 (as a unpublished chart). It became official the week of October 25, 2003. At first it had six stations who programed a full-time Dance format.<ref name=Billboard/Nielsen>'Billboard Charts', "Billboard", Vol. 123, No. 42 (November 19, 2011), p. 53</ref> In 2008 it became exclusive-only to "Billboard". The chart was renamed to Dance/Mix Show Airplay in November 2011. This is when it made its playlist available for viewing on BDS Radio's website. This included the selected Top 40, Rhythmic, and Adult Top 40 stations who submit their mix show hours to Billboard. A modified version was added to Billboard's website in January 2013. It featured 15 songs. Originally featuring 25 charted titles when it started in 2003, it was expanded finally to 40 songs in December 2014. It is available from Billboard and from BDS. 