The National Disco Action Top 40 was a chart published weekly by Billboard magazine in the United States, which ranked the popularity of disco singles in nightclubs across the country, based on a national survey of club disc jockeys. Adjusted multiple times during 1979, the chart expanded to 60 positions on April 7, and was renamed the Disco Top 80 on April 14. The chart was further extended as the Disco Top 100 on September 8.
Chart history Issue dateSongArtistJanuary 6"Le Freak"/"I Want Your Love"/"Chic Cheer"ChicJanuary 13"Contact"Edwin StarrJanuary 20Fly Away (all cuts)VoyageJanuary 27"I Will Survive"/"Substitute"/"Anybody Wanna Party?"/"I Said Yes"Gloria GaynorFebruary 3February 10February 17"Keep on Dancin'"/"Do It at the Disco"/"Let's Lovedance Tonight"Gary's GangFebruary 24"Da Ya Think I'm Sexy?"Rod StewartMarch 3March 10March 17"I Got My Mind Made Up (You Can Get It Girl)"Instant FunkMarch 24"We Are Family"/"He's the Greatest Dancer"/"Lost in Music"Sister SledgeMarch 31April 7"Dancer"/"Dance to Dance"Gino SoccioApril 14April 21April 28May 5May 12May 19"Ring My Bell"Anita WardMay 26Bad Girls (all cuts)Donna SummerJune 2June 9June 16June 23June 30July 7July 14"Born to Be Alive"Patrick HernandezJuly 21July 28August 4"I've Got the Next Dance"Deniece WilliamsAugust 11"This Time Baby"Jackie MooreAugust 18"Here Comes That Sound Again"Love De-LuxeAugust 25The Boss (all cuts)Diana RossSeptember 1September 8"Found a Cure"/"Stay Free"/"Nobody Knows"Ashford & SimpsonSeptember 15September 22"Come to Me"/"Don't Stop Dancing"/"Playboy"France JoliSeptember 29October 6October 13"Move On Up"/"Up Up Up"/"Destination's Theme"DestinationOctober 20October 27November 3November 10"Harmony"/"Ooh, La La" Suzi LaneNovember 17"Beat of the Night"/"Pump It Up"FeverNovember 24"No More Tears (Enough Is Enough)"Barbra Streisand and Donna SummerDecember 1December 8December 15December 22"Deputy of Love"Don Armando's Second Avenue Rhumba BandDecember 29
See also 1979 in music List of Billboard Hot 100 number ones of 1979
References
Some weeks may also be found at Billboard magazine courtesy of Google Books: 1975—1979.