Azalea earned her seven weeks atop the Hot 100 all courtesy of her debut smash "Fancy," featuring Charli XCX, in 2014. (Thus, she notched all her weeks at No. 1 as a lead act; Cardi B has spent four of her seven weeks at No. 1 as a lead.)
Beyond Cardi B and Azalea (whose upcoming tour has been canceled), three other female rappers have ruled the Hot 100: Lauryn Hill's first solo Hot 100 entry (apart from the Fugees), "Doo Wop (That Thing)," led for two weeks beginning with its Nov. 14, 1998, debut at No. 1; Lil' Kim reigned for five weeks in 2001, with Christina Aguilera, Mya and P!nk, on "Lady Marmalade"; and, Shawnna topped the chart as featured on Ludacris' "Stand Up," which topped the Dec. 6, 2003, tally.
The stat about Cardi B and Azalea's achievements is courtesy of insightful chart-watcher Jake Rivera, who has more: another week at No. 1 on the Hot 100 for "Girls" would not only replace "Bodak Yellow" as Cardi B's longest-running No. 1, it would also tie "Moves Like Jagger" (featuring Aguilera), in 2011, as Maroon 5's second-longest, after "One More Night," which led for nine weeks in 2012. Of the group's four No. 1s, "Girls" is now tied with first leader "Makes Me Wonder," which spent three weeks on top in 2007.
Meanwhile, Cardi B collects her first No. 1 on Hot Latin Songs, as DJ Snake's "Taki Taki," on which she's featured with Selena Gomez and Ozuna, launches atop the survey.
Not to make Jake do all the work, here are other notable Hot 100 chart moves this week:
"Natural," Imagine Dragons
The track, at No. 19 on the Hot 100 after reaching No. 14, becomes the band's sixth Radio Songs top 10 (11-10; 59.8 million in audience, up 5 percent, according to Nielsen Music). The sum is the best among rock duos or groups since the act's first Radio Songs top 10 (the aptly titled "Radioactive") in 2013; twenty one pilots follow with three in that span.
"You Say," Lauren Daigle
As the ballad (No. 70 on the Hot 100) leads Hot Christian Songs for a 12th week, it becomes Daigle's first entry on the Adult Pop Songs airplay chart, debuting at No. 40. KDMX Dallas led all Adult Pop Songs reporters with 41 plays for the song in the tracking week (ending Oct. 7).
"Lost in Japan," Shawn Mendes X Zedd
The song, now a co-credited collab thanks to its new Zedd remix, re-enters the Hot 100 at No. 99, after first spending a week on the chart at No. 64 on April 7; "Japan" was originally released by Mendes solo on his self-titled album that debuted atop the Billboard 200 dated June 9. The song gains by 216 percent to 4.7 million U.S. streams and 207 percent to 5,000 downloads sold, while jumping 35-25 as the Greatest Gainer on the Pop Songs airplay chart (up 127 percent in plays).