Katy Perry claims the record for the most weeks at No. 1 in the 21-year history of Billboard's Pop Songs radio airplay chart all to herself, as "Dark Horse," featuring Juicy J, spends a fourth week on top, upping her career count to 46 weeks at No. 1. With her latest frame in the lead, Perry passes Mariah Carey, who's totaled 45 weeks at No. 1.Here's an updated look at the acts to spend the most time at No. 1 dating to the Oct. 3, 1992, launch of the Nielsen BDS-based tally, which measures the most weekly plays at mainstream top 40 stations:Weeks at No. 1, Artist46, Katy Perry45, Mariah Carey32, P!nk32, Rihanna29, Ace of Base26, Maroon 525, Christina Aguilera23, Beyonce23, Boyz II Men23, NellyPerry has earned her record-breaking feat courtesy of 11 Pop Songs No. 1s, also a chart best-sum, which she shares with Rihanna. (Notably, the careers of artists like Carey and Boyz II Men pre-date the Pop Songs chart's inception.) Of Perry's 11 leaders, "Horse" is the eighth to rule for at least four weeks. She set a personal best when "California Gurls," featuring Snoop Dogg, dominated for seven weeks in 2010.On its way to granting Perry her latest piece of Pop Songs history, "Horse" last week set the mark for the most weekly plays (16,151) in the chart's archives. It passed the 16,065 plays that her prior topper, "Roar," drew on the Oct. 19, 2013, chart.In addition to its pop airplay success, "Horse" topped the all-format airplay/sales/streaming-based Billboard Hot 100 chart, where it's her ninth career No. 1. It's sold 3.5 million downloads, according to Nielsen SoundScan. The song continues to build at multiple radio formats, bulleting at No. 2 on Rhythmic Songs, No. 8 on Adult Pop Songs and No. 28 on Adult Contemporary.All charts, including Pop Songs, will refresh on Thursday (March 6) on Billboard.com.
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