text: As Dark Horse reigns for a fourth week, Perry rewrites the mark for the most total weeks at No. 1 in the airplay charts archives
  Katy Perry claims the record for the most weeks at No. 1 in the 21-year history of Billboards 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, whos totaled 45 weeks at No. 1
  Heres 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, Artist
  46, Katy Perry
  45, Mariah Carey
  32, P!nk
  32, Rihanna
  29, Ace of Base
  26, Maroon 5
  25, Christina Aguilera
  23, Beyonce
  23, Boyz II Men
  23, Nelly
  Perry has earned her record-breaking feat courtesy of 11 Pop Songs No. 1s, also a chart best-sum, which she shares with Rihanna. Of Perrys 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 in the charts 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 its her ninth career No. 1. Its 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 on Billboard.com