Billboard began compiling the top-performing dance singles in the United States with the Disco Action chart in 1974. Premiered on the issue dated October 26, the chart ranked the popularity of songs in New York City discothèques, expanded to feature multiple charts each week which highlighted playlists in various cities such as San Francisco, Los Angeles, Miami, Chicago, Boston, Phoenix, Detroit and Houston. During this time, Billboard rival publication Record World was the first to compile a dance chart which incorporated club play on a national level. Noted Billboard statistician Joel Whitburn has since "adopted" Record World chart data from the weeks between March 29, 1975, and August 21, 1976, into Billboards club play history. For the sake of continuity, Record World national charts are incorporated into the 1975 and 1976 lists. With the issue dated August 28, 1976, Billboard premièred its own national chart ("National Disco Action Top 30") and their data is used from this date forward.
Chart history 1974 Issue dateSingleArtistBillboard Disco Action dataOctober 26"Never Can Say Goodbye"Gloria GaynorNovember 2November 9November 16November 23"Express"B.T. ExpressNovember 30December 7December 14December 21December 28"I'll Be Holding On"Al Downing
1975 Issue dateSingleArtistBillboard Disco Action dataJanuary 4"I'll Be Holding On"Al DowningJanuary 11January 18"Shame, Shame, Shame"Shirley & CompanyJanuary 25February 1February 8February 15"Hijack"Herbie MannFebruary 22March 1March 8"Bad Luck"Harold Melvin & the Blue NotesMarch 15March 22Record World disco chart dataMarch 29"Bad Luck"Harold Melvin & the Blue NotesApril 5April 12April 19April 26May 3May 10May 17May 24"Ease On down the Road"Consumer RapportMay 31June 7June 14June 21"Free Man"South Shore CommissionJune 28"Ease On down the Road"Consumer RapportJuly 5"Forever Came Today"The Jackson 5July 12July 19July 26"Dreaming a Dream"Crown Heights AffairAugust 2"Forever Came Today"The Jackson 5August 9"Brazil"The Ritchie FamilyAugust 16August 23August 30September 6September 13September 20September 27"Fly, Robin, Fly"Silver ConventionOctober 4October 11October 18"Casanova Brown"/"(If You Want It) Do It Yourself"/"How High the Moon"Gloria GaynorOctober 25"Love to Love You Baby"Donna SummerNovember 1November 8November 15November 22"I Love Music"The O'JaysNovember 29December 6December 13December 20December 27
See also 1974 in music 1975 in music List of Billboard Hot 100 number ones of 1974 List of Billboard Hot 100 number ones of 1975
References Citations
Sources
Some weeks may also be found at Billboard magazine courtesy of Google Books: 1975—1979.