Madonna’s back at No. 1 on the Dance Club Songs chart, as her latest single, “B**** I’m Madonna” rises 2-1 on the chart dated Aug. 15. It’s Madonna’s 46th No. 1 on this chart, and extends her own record for the most No. 1s on a singular Billboard chart. (She broke the record in May, when she surpassed George Strait’s 44 leaders on the Hot Country Songs chart.) For Minaj, “Madonna” is her fifth No. 1. She also hit the top with “Turn Me On” (David Guetta featuring Minaj), “Give Me All Your Luvin'” (Madonna featuring Minaj & M.I.A.), “Pound the Alarm” and “Beauty and a Beat” (Justin Bieber featuring Minaj). Here is an updated look at Madonna’s 46 Dance Club Songs No. 1s, beginning with the double-sided single “Holiday”/”Lucky Star,” which reached the top the week of Sept. 24, 1983. You’ll notice that one of her No. 1s is an entire album: You Can Dance (1988), a collection of mostly remixes of previously-released songs (and one new cut, “Spotlight”). Prior to Feb. 23, 1...