"Closer" continues its reign, while The Weeknd's new single, featuring Daft Punk, soars 40-3. Plus, Niall Horan's "This Town" debuts.

The Chainsmokers rule the Billboard Hot 100 (dated Oct. 15) for a seventh week with "Closer," featuring Halsey. Meanwhile, The Weeknd blasts from No. 40 to No. 3 with his new single "Starboy," featuring Daft Punk, and "This Town," the first solo offering from One Direction's Niall Horan, debuts at No. 63.

As we do every Monday when the chart is compiled, let's run down the Hot 100's top 10 and more. Highlights of the airplay, sales and streaming-based 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, spends an eighth week atop the Digital Song Sales chart with 137,000 downloads sold (down 16 percent) in the week ending Sept. 29, according to Nielsen Music. "Closer" tops the Streaming Songs chart for a seventh week, with 37.8 million U.S. streams (down 3 percent), and the audio subscription services-based On-Demand Songs streaming chart (21.6 million on-demand clicks, down 2 percent) for an eighth frame.

The Chainsmokers Talk Success at iHeartRadio Music Festival 2016: 'We're Super Grateful'

"Closer" concurrently crowns the Radio Songs chart, climbing 2-1 with 138 million in airplay audience, up 9 percent. It, thus, 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, becoming the first song to do so since Adele's "Hello" (Nov. 28, 2015, its third of 10 weeks atop the Hot 100). Prior to "Hello," Mark Ronson's "Uptown Funk!," featuring Bruno Mars, led all the lists simultaneously for eight weeks in February-April 2015 (on its way to earning the No. 1 spot on the 2015 year-end Hot 100). Dating to the Streaming Songs' inception in January 2013, only one other song has topped all four charts at the same time: Iggy Azalea's "Fancy," featuring Charli XCX, on June 28, 2014.

Meanwhile, "Closer" bests the six-week reigns of Macklemore & Ryan Lewis' "Thrift Shop" (featuring Wanz) in 2013 and LMFAO's "Party Rock Anthem" (featuring Lauren Bennett and GoonRock) in 2011 to become the longest-leading Hot 100 No. 1 by a duo in more than 12 years: since OutKast's "Hey Ya!," which ruled for nine weeks in 2003-04.

"Closer" additionally tops Billboard's Hot Dance/Electronic Songs chart for a seventh week and the Pop Songs radio airplay chart for a second frame.

Twenty One Pilots' "Heathens" holds at its No. 2 Hot 100 high, as the duo (Tyler Joseph and Josh Dun) remains at its best rank (with its "Stressed Out" having peaked at No. 2 in February). "Heathens" regresses 2-3 on Streaming Songs (19.9 million, down 5 percent); keeps at No. 3 on Digital Song Sales (77,000, down 9 percent); and pushes 6-5 on Radio Songs (107 million, up 14 percent). The track tallies an eighth week at No. 1 on Billboard's Hot Rock Songs chart.

The Weeknd vaults 40-3 on the Hot 100 at No. 40 with "Starboy," featuring Daft Punk. Released Thursday Sept. 22, the song debuted on the Oct. 8-dated Hot 100 with 28,000 in sales, 2.9 million U.S. streams and 36 million in airplay audience (data that encompassed the song's first day of sales and streaming and first four days of airplay, per the chart's tracking periods for each metric). On the new Oct. 15-dated Hot 100, following its first full week of tracking, "Starboy" zooms 22-2 on Digital Song Sales (88,000), enters Streaming Songs at No. 2 (22.8 million) and bounds 37-16 on Radio Songs (64 million), powered in part by the release of its official video Sept. 28 (the second-to-last day of the sales and streaming tracking week).

The Weeknd & Daft Punk's 'Starboy' Powers to No. 1 on Billboard + Twitter Trending 140 Chart

The Weeknd earns his fifth Hot 100 top 10, and first since "The Hills" became his second No. 1, after "Can't Feel My Face," in late 2015. Daft Punk notches its second top 10; its "Get Lucky," featuring Pharrell Williams, peaked at No. 2 for five weeks in 2013.

Notably, "Starboy" makes the biggest jump into the Hot 100's top five (or top three) since Taylor Swift's "Bad Blood," featuring Kendrick Lamar, leapt 53-1 on the June 6, 2015, chart, following its first full week of tracking after its video premiered to open the 2015 Billboard Music Awards.

"Starboy" additionally surges 12-1 on Billboard's Hot R&B/Hip-Hop Songs chart, where it's The Weeknd's fourth No. 1, as well as Daft Punk's first (in the duo's first visit to the ranking).

Watch The Weeknd Perform 'Starboy' and 'False Alarm' on 'SNL' Season Premiere

"Starboy" is the lead single from The Weeknd's forthcoming album of the same name, due Nov. 25. He performed the song, as well as fellow Starboy preview track "False Alarm," on the season premiere of NBC's Saturday Night Live Oct. 1.

Rounding out the Hot 100's top five are two tracks featuring Justin Bieber. Major Lazer's "Cold Water," featuring Bieber and MO, dips 3-4 after reaching No. 2. It stays at No. 3 on Radio Songs (120 million, down 1 percent) and dips 3-5 on Streaming Songs (16.5 million, down 17 percent) and 10-11 on Digital Song Sales (36,000, down 17 percent).

Meanwhile, DJ Snake's "Let Me Love You," also featuring Bieber, retreats to No. 5 from its No. 4 high on the Hot 100, although with gains in all metrics. The collab slips 5-6 on Streaming Songs but with a 1 percent gain to 14.8 million; holds at No. 7 on Digital Song Sales (46,000; up 2 percent); and hits the Radio Songs top 10 (12-9; 84 million, up 16 percent). The track is Bieber's eighth Radio Songs top 10 and DJ Snake's third.

Shawn Mendes Earns Second No. 1 Album on Billboard 200 With 'Illuminate'

Shawn Mendes' "Treat You Better" is steady at its No. 6 high on the Hot 100, while parent album Illuminate launches at No. 1 on the Billboard 200; Sia's former four-week Hot 100 No. 1 "Cheap Thrills," featuring Sean Paul, drops 5-7 (and departs the Radio Songs summit after eight weeks as the most-heard song on U.S. radio; 126 million, down 3 percent); and D.R.A.M.'s first Hot 100 top 10, "Broccoli," featuring Lil Yachty, holds at its No. 8 peak.

Rounding out the Hot 100's top 10, The Chainsmokers' other song in the region, "Don't Let Me Down," featuring Daya, slides 7-9 and Calvin Harris' No. 3-peaking "This Is What You Came For," featuring Rihanna, remains at No. 10.

Just outside the Hot 100's top 10, two songs, both by artists in their first appearances on the chart, hit the top 15, reaching new peaks: gnash's "I Hate U I Love You," featuring Olivia O'Brien, jumps 19-13 and Kiiara's "Gold" climbs 16-15.

Niall Horan's 'This Town' Debuts Atop the Billboard + Twitter Trending 140 Chart

The Hot 100's top debut of the week belongs to One Direction's Niall Horan, whose first solo "This Town" begins at No. 63. Released Thursday (Sept. 29), the track launches at No. 6 on Digital Song Sales with 48,000 sold, while adding 679,000 domestic streams and 11 million in radio audience. Like The Weeknd's "Starboy" the week before, "Town" starts with one day each of sales and streaming data and four days of airplay measurement; "Town" should soar on the Oct. 22-dated Hot 100 following its first full week of tracking.

Find out more Hot 100 news in the weekly "Hot 100 Chart Moves" column later this week, and visit Billboard.com tomorrow (Oct. 4), 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. 7).