Getty Images Janet Jackson, Madonna and Enrique Iglesias. The icon is the queen of the chart's first 40 years. Plus, Pet Shop Boys are the top duo/group & Enrique Iglesias is the top solo male. Madonna is the No. 1 Billboard Dance Club Songs artist over the last 40 years, dating to the chart's 1976 inception. The icon reigns thanks largely to her record total of 46 No. 1s, the most of any artist on any single Billboard chart, and her consistently dazzling performance on the tally since her 1982 debut. In the Dance Club Songs chart's history, in addition to her unmatched 46 No. 1s, Madonna owns the record for the most top 10s: 60. Janet Jackson follows with 33. Fittingly, following Madonna on Billboard 's Greatest of All Time Top Dance Club Songs Artists list is Ms. Jackson at No. 2. Rihanna ranks at No. 3, followed by Beyonce (No. 4) and Pet Shop Boys (No. 5), the top duo or group; Depeche Mode (No. 1...