Mark Ronson, Bruno Mars Top Hot 100, Maroon 5 Debuts at No. 8

Chris Floyd
Mark Ronson photographed on Jan. 6, 2015 at Big Sky Studios in London.

'Uptown Funk!' rules for a third week. Plus, the police helps escort Taylor Swift's 'Shake It Off' back into the top five and Maroon 5's 'Sugar' sweetens the chart at No. 8.

Mark Ronson's "Uptown Funk!," featuring Bruno Mars, leads the Billboard Hot 100 for a third week. Meanwhile, Taylor Swift's newest fan -- in blue -- sparks a resurgence for "Shake It Off" and Maroon 5 blasts in at No. 8 with its new single "Sugar" following the premiere of its video.

As we do each Wednesday, let's look at the key numbers throughout the top 10 on the sales/airplay/streaming-based Hot 100.
 
"Funk!," released on RCA Records, spends a fourth week atop Digital Songs with 400,000 downloads sold (up 17 percent) in the week ending Jan. 18, according to Nielsen Music, and nets the Hot 100's top Digital Gainer award. It also leads the subscription services-based On-Demand Songs chart for a second week with 5.3 million U.S. streams (up 14 percent). "Funk" retreats 1-2 on Streaming Songs despite a 28 percent gain to 14.9 million, while on Radio Songs, it flies 6-2 with a 31 percent burst to 135 million in all-format audience, good for top Airplay Gainer honors on the Hot 100, as well.

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Aiding the momentum of "Funk": Ronson's new album, Uptown Special, which debuts on the Billboard 200 at No. 5 with 77,000 equivalent units (including 30,000 in pure album sales).
 
Ed Sheeran's "Thinking Out Loud" charges 4-2 on the Hot 100, reaching a new peak (and marking a new best career rank for the singer/songwriter). The third single from X stays at No. 2 on Digital Songs (241,000, up 8 percent); lifts 4-3 on Streaming Songs (10.5 million, up 14 percent); and pushes 9-7 on Radio Songs (93 million, up 27 percent).
 
Thus, after a lengthy (and well-documented) run of women ruling the Hot 100's upper reaches, solo men now control the chart's top two. It's the first time that male soloists have ranked at Nos. 1 and 2 simultaneously in eight months; John Legend and Pharrell Williams last doubled up on the May 24 chart with "All of Me" (No. 1) and "Happy" (No. 2).
 
And, as predicted here last week, "Funk" (up 23 percent in overall activity) and "Loud" (up 13 percent) appear in line to lock up the Hot 100's top two spots for the foreseeable future, with "Funk" likely to lead, given its significant current advantage in chart points.
 
After topping the Hot 100 for seven weeks, Swift's "Blank Space" drops 2-3, while fellow former No. 1 (for four weeks) "Shake It Off" rebounds 9-5 as the chart's top Streaming Gainer. Behind the latter hit's comeback? Master Cpl. Jeff Davis of the Dover, Del. Police department went viral with his sassy lip sync of it after it was posted to the department's Facebook page. On Streaming Songs, "Shake" returns to the top, vaulting 8-1 with a 132 percent increase to 16.7 million U.S. clicks (with more than two-thirds of its weekly streams from YouTube views of the user-generated clip). The song leads the chart for a second week, having first topped it the week of Nov. 22.
 
Meanwhile, "Space" crowns Radio Songs for a sixth week, extending her longest command (145 million, down 4 percent). Plus, "Style," newly confirmed as the official third single from 1989, surges 72-52 on the Hot 100, powered largely by its 37-23 bump on Digital Songs (51,000, up 22 percent).
 
Also in the Hot 100's top five, Hozier's No. 2-peaking "Take Me to Church" slips 3-4. It holds at No. 3 on Digital Songs (159,000, down 20 percent) and No. 4 on Radio Songs (117 million, up 7 percent) and rebounds 5-4 (after reaching No. 2) on Streaming Songs (9.2 million, up 2 percent). On the Hot Rock Songs chart, "Church" rules for a 14th week.
 
Meghan Trainor keeps at No. 6 on the Hot 100 with her No. 4-peaking "Lips Are Movin," while her debut eight-week No. 1 "All About That Bass" holds at No. 10. As "Bass" spends a 25th week in the top 10, it becomes just the 10th song in the Hot 100's 56-year history to log that many weeks or more in the region. (LeAnn Rimes' "How Do I Live" holds the record with 32 weeks in the top 10 in 1997-98.) "Lips" reaches the Radio Songs top 10, climbing 11-8 with a 17 percent jump to 75 million in audience.
 
The moves add to Trainor's monumental week, as her debut full-length Title roars to the top of the Billboard 200 with 238,000 equivalent units (with 195,000 from pure album sales).
 

 
Below Sam Smith's "I'm Not the only One," which falls to No. 7 from its No. 5 high, Maroon 5 launches at No. 8 with "Sugar." The band instantly adds its 11th top 10 and equals its second-best bow; "Payphone" rocketed in at No. 3 in 2012 (before peaking at No. 2), while "Moves Like Jagger," featuring Christina Aguilera, also started at No. 8 in 2011 (eventually spending four weeks at No. 1). Notably, "Jagger" jumpstarted Maroon 5's profile (unsurprisingly, as frontman Adam Levine and Aguilera had begun their runs as coaches on NBC's The Voice). The group has logged eight of its 11 Hot 100 top 10s starting with "Jagger." It had first reached the tier three times in 2004-07.
 
"Sugar" starts at No. 4 on Digital Songs (150,000, up 3,577 percent) and at No. 7 on Streaming Songs (8 million), following the Jan. 14 premiere of its buzzy official video in which Maroon 5 goes on a wedding-crashing spree. The soulful pop track nears Radio Songs with a 184 percent gain to 22 million.
 
Rounding out the Hot 100's top 10 (above "Bass"), Nick Jonas' "Jealous" backtracks to No. 9 from its No. 7 peak.
 
Visit Billboard.com tomorrow (Jan. 22), when all rankings, including the Hot 100 in its entirety and Digital Songs, Radio Songs and Streaming Songs, will refresh, as they do each Thursday.