"Closer" reigns for a ninth week, "24K Magic" marks Mars' highest debut and Grande & Minaj's "Side to Side" pedals 12-10.

The Chainsmokers continue to top the Billboard Hot 100 (dated Oct. 29), as "Closer," featuring Halsey, leads for a ninth week. Meanwhile, Bruno Mars' "24K Magic" debuts at No. 5 and Ariana Grande and Nicki Minaj's "Side to Side" rises 12-10.



As we do every Monday when the chart is compiled, let's run down the top 10 of the Hot 100, which blends sales, airplay and streaming data. Highlights of the Hot 100 post on Billboard.com each Monday, with all charts updated each Tuesday.



"Closer," released on Disruptor/Columbia Records, and the first Hot 100 No. 1 for both The Chainsmokers (Drew Taggart and Alex Pall) and Halsey, remains the top-selling, most-streamed and most-heard song on radio in the U.S. It leads the Digital Song Sales chart (111,000 downloads sold, down 10 percent in the week ending Oct. 13, according to Nielsen Music) and the Streaming Songs chart (33.2 million U.S. streams, down 6 percent) for a ninth week each. It also tops the audio subscription services-based On-Demand Songs streaming survey for a 10th week (17.5 million on-demand clicks, down 9 percent), and the Radio Songs ranking for a third frame (148 million in airplay audience, up 4 percent, in the week ending Oct. 16).

"Closer" commands the Hot 100 and all three of the Hot 100's main component charts (Digital Song Sales, Streaming Songs and Radio Songs), as well as On-Demand Songs, simultaneously for a third week, extending the longest such sweep since Mark Ronson's "Uptown Funk!," featuring Mars, led all the rankings at the same time for eight weeks in February-April 2015.

Meanwhile, with its ninth week at No. 1 on the Hot 100, "Closer" ties OutKast's "Hey Ya!" (2003-04) for the second-longest reign ever among duos; with 14 weeks on top in 1996, only Los Del Rio's "Macarena (Bayside Boys Mix)" has led longer. (The stat excludes pairings of singers who don't normally record together, such as Brandy and Monica, whose "The Boy Is Mine" ruled for 13 weeks in 1998, or Diana Ross and Lionel Richie, who spent nine weeks at No. 1 in 1981 with "Endless Love.") "Closer" additionally tops Billboard's Hot Dance/Electronic Songs chart for a ninth week.

The Weeknd's "Starboy," featuring Daft Punk, holds at its No. 2 high on the Hot 100. It keeps at No. 2 on Streaming Songs (25.6 million, down 5 percent), dips 2-3 on Digital Song Sales (86,000, down 7 percent) and pushes 8-7 on Radio Songs (101 million, up 17 percent). "Starboy" additionally tops the Hot R&B/Hip-Hop Songs chart for a third week. The song is the lead single from The Weeknd's album of the same name due Nov. 25.

Twenty One Pilots' "Heathens" is steady at No. 3 on the Hot 100 after logging four weeks at its No. 2 peak. It holds at No. 2 on Radio Songs (127 million, up 6 percent) and retreats 3-4 on Digital Song Sales (although up 8 percent to 79,000) and 4-5 on Streaming Songs (16.5 million, down 13 percent). It tallies a 10th week at No. 1 on Billboard's Hot Rock Songs chart.

DJ Snake's "Let Me Love You," featuring Justin Bieber, rebounds from No. 5 to its No. 4 Hot 100 high. The collab reaches the Radio Songs top five (7-5; 106 million, up 13 percent), slips 6-7 on Streaming Songs (14.3 million, down 2 percent) and jumps 9-5 on Digital Song Sales (62,000; up 49 percent).

Mars' "24K Magic" launches at No. 5 on the Hot 100, as it begins at No. 2 on Digital Song Sales (101,000 first-week downloads sold) and No. 9 on Streaming Songs (12.8 million) and vaults 36-15 on Radio Songs (65 million) following its first full week of airplay tracking. (It should benefit on next week's charts following Mars' performance of it on NBC's Saturday Night Live Oct. 15.)

"Magic," Mars' 13th Hot 100 Top 10, was released Oct. 7 on digital and streaming services, and is the title track from the pop star's third full-length, due Nov. 18. Notably, the lead singles from Mars' first two studio sets both hit No. 1 on the Hot 100: "Just the Way You Are," from Doo-Wops & Hooligans, for four weeks in 2010, and "Locked Out of Heaven," from Unorthodox Jukebox, for six weeks in 2012-13. (The songs debuted at Nos. 43 and 34, respectively.)

"Magic" additionally marks Mars' highest Hot 100 debut. Of his 19 entries so far (dating to his 2010 arrival), he had previously bowed as high as No. 10, as a featured act on Snoop Dogg and Wiz Khalifa's "Young, Wild & Free" (Oct. 29, 2011). As a lead artist, he had debuted at a No. 28 high with "It Will Rain" (Oct. 15, 2011).

"Magic" is the fourth song to blast onto the Hot 100 in the top five in 2016, following No. 1 entrances for Zayn's "Pillowtalk" (Feb. 20) and Justin Timberlake's "Can't Stop the Feeling!" (May 28); Major Lazer's "Cold Water," featuring Bieber and MO, opened at No. 2 (Aug. 13).

Below the Hot 100's top five, D.R.A.M.'s first top 10, "Broccoli," featuring Lil Yachty, keeps at its No. 6 peak, while topping Hot Rap Songs for a sixth week; "Cold Water" falls 4-7 after reaching No. 2; Shawn Mendes' "Treat You Better" slides 7-8 after hitting No. 6; and Sia's former four-week Hot 100 No. 1 "Cheap Thrills," featuring Sean Paul, drops 8-9.



Rounding out the Hot 100's top 10, Grande's "Side to Side," featuring Minaj, rises 12-10. It backtracks 7-8 on Streaming Songs, but gains by 6 percent to 14 million, surges 17-10 on Digital Song Sales (37,000, up 29 percent) and lifts 37-31 on Radio Songs (43 million, up 24 percent). (Adding to the song's exposure: its synch in a new T-Mobile ad.)

Grande earns her eighth Hot 100 top 10, and second from her album Dangerous Woman, following the No. 8-peaking title track lead single. (In between the two songs, the set's second single, "Into You," reached No. 13.) Minaj scores her 13th Hot 100 top 10, extending her record for the most top 10s among female rappers; Missy Elliott ranks second with nine. "Side to Side" also marks Grande and Minaj's second top 10 side-by-side: they previously teamed for the No. 3-peaking "Bang Bang," with Jessie J, in 2014.

Beyond the Hot 100's top 10, in addition to Mars' "Magic," other Hot 100 debuts on the chart include John Legend's "Love Me Now" (No. 55), Maroon 5's "Don't Wanna Know," featuring Kendrick Lamar (No. 56), and Lady Gaga's "Million Reasons" (No. 76).

Find out more Hot 100 news in the weekly "Hot 100 Chart Moves" column later this week, and visit Billboard.com tomorrow (Oct. 18), when all rankings, including the Hot 100 in its entirety, will refresh. The Hot 100 and other charts will also appear in the next issue of Billboard magazine, on sale Friday (Oct. 21).