A still from "Uptown Funk" by Mark Ronson featuring Bruno Mars.

A still from "Uptown Funk" by Mark Ronson featuring Bruno Mars.

Courtesy Photo

Mark Ronson's "Uptown Funk!," featuring Bruno Mars, ties for the second-longest-leading Billboard Hot 100 ever, ruling the chart for a 14th week. The smash also ties for the chart's longest command this century.

Plus, Wiz Khalifa vaults into the top 10 with "See You Again," from the box-office hit Furious 7. The track also takes over atop the Digital Songs chart.

As we do each Wednesday, let's look at all the songs in the top 10, and a bit further, on the sales/airplay/streaming-based Hot 100 (dated April 18).

"Funk," released on RCA Records, ties six other singles for the second-best run at No. 1 dating to the Hot 100's Aug. 4, 1958, launch, with only one song having led longer. Here's an updated ranking of the longest-leading Hot 100 No. 1s all-time:

Weeks at No. 1, Title, Artist, Date Reached No. 1
16, "One Sweet Day," Mariah Carey & Boyz II Men, Dec. 2, 1995
14 (to date), "Uptown Funk!," Ronson feat. Mars, Jan. 17, 2015
14, "I Gotta Feeling," the Black Eyed Peas, July 11, 2009
14, "We Belong Together," Mariah Carey, June 4, 2005
14, "Candle in the Wind 1997"/"Something About the Way You Look Tonight," Elton John, Oct. 11, 1997
14, "Macarena (Bayside Boys Mix)," Los Del Rio, Aug. 3, 1996
14, "I'll Make Love to You," Boyz II Men, Aug. 27, 1994
14, "I Will Always Love You," Whitney Houston, Nov. 28, 1992

"Funk" also ties for the longest stay at No. 1 on the Hot 100 this century. With 14 weeks on top, it matches the Black Eyed Peas' command with "I Gotta Feeling," the last song to lead for at least that long, in 2009. Mariah Carey also logged 14 weeks at No. 1 with "We Belong Together" in 2005. 

"Funk" is, thus, just two weeks from potentially tying "One Sweet Day" for the all-time record, and three weeks from possibly claiming it all to itself. Can it reshape Hot 100 history? While it's still a bit early to forecast charts three weeks away, "Funk" still sports strong leads in two of the Hot 100's three main metrics (airplay and streaming). Notably, it's no longer the top-selling song in the country. 

"Funk" drops 1-2 after a record-tying 13 weeks atop Digital Songs with 163,000 downloads sold (down 1 percent) in the week ending April 5, according to Nielsen Music. The song remains tied with Flo Rida's 2007-08 hit "Low," featuring T-Pain, for the most weeks a title has spent at No. 1 on Digital Songs. 

"Funk" also leads Streaming Songs (15.8 million U.S. streams, down 3 percent) for a 12th week. That's the second-best reign ever: only Iggy Azalea's "Fancy," featuring Charli XCX, has spent more time at No. 1: 13 weeks, last year.

On Radio Songs, "Funk" dominates for an 11th week with 159 million in all-format audience (down 5 percent). It boasts the longest No. 1 stay since Robin Thicke's "Blurred Lines," featuring T.I. and Pharrell, also led for 11 weeks in 2013. The record? Goo Goo Dolls' "Iris" ruled for 18 weeks in 1998. (The chart premiered in December 1990.)

While "Funk" holds atop the Hot 100, the gap between it and the runner-up closes. "Funk" is down by 3 percent in overall activity, while the No. 2 song (for a fourth week), Maroon 5's "Sugar," gains by 6 percent. "Sugar" holds at No. 2 on Radio Songs (140 million, up 5 percent); drops 2-3 on Digital Songs, but with a 2 percent gain to 147,000; and rises 4-3 on Streaming Songs (10.5 million, up 11 percent). On the subscription services-based On-Demand Songs chart, "Sugar" backtracks 1-2 after a week on top but with a hefty 17 percent increase to 4.7 million streams.

Chart Highlights: Maroon 5 Rides 'Sugar' High, Hits No. 1 on Pop Songs

As previously reported, "Sugar" crowns the Pop Songs airplay chart, where it's Maroon 5's eighth No. 1, the most among groups. The band doubles the sum of the next-closest group: Boyz II Men (four No. 1s). The song additionally passes 2 million in sales to-date.

Ellie Goulding's "Love Me Like You Do" returns to its No. 3 high on the Hot 100 after five weeks at No. 4. The Fifty Shades of Grey soundtrack single pushes 5-4 on Radio Songs (127 million, up 7 percent) and descends 5-6 on Streaming Songs (8.7 million, down 3 percent) and 4-7 on Digital Songs (118,000, down 4 percent).

From the same hit movie, The Weeknd's "Earned It (Fifty Shades of Grey)" rises to a new Hot 100 peak (5-4), adding top Airplay Gainer honors for a third week. On Radio Songs, it holds at No. 6 but racks a robust 21 percent gain to 104 million. "Earned" (still looking like a contender for No. 1 on the Hot 100 …) climbs 6-4 on Streaming Songs (9.8 million, up 10 percent) and keeps at No. 6 on Digital Songs (125,000, up 17 percent). The steamy track rules Billboard's Hot R&B/Hip-Hop Songs chart for a second week.

Rounding out the Hot 100's top five, Ed Sheeran's "Thinking Out Loud" slides 3-5 after peaking at No. 2 for eight weeks.

Billboard Music Awards 2015: See the Full List of Finalists; Taylor Swift Leads With 14 Nominations

Fetty Wap's "Trap Queen" holds at No. 6 on the Hot 100, while spending a third week at No. 1 on Hot Rap Songs. Taylor Swift's "Style" ranks at No. 7 on the Hot 100 for a fourth frame after reaching No. 6. (And is "Bad Blood" the next single from Swift's album 1989? Internet rumors say yes. A source at Republic Records neither confirms nor denies it.)

Flo Rida climbs to a new Hot 100 high point (9-8) with "G.D.F.R.," featuring Sage the Gemini and Lookas. The rapper's new EP, My House, arrived Tuesday and is set to debut on next week's Billboard 200 album chart. Rihanna, Kanye West and Paul McCartney's "FourFiveSeconds" falls 8-9 on the Hot 100 after peaking at No. 4.

Rapper Wiz Khalifa notches the Hot 100's lone new top 10, as "See You Again," featuring pop singer/songwriter Charlie Puth, rockets 84-10. As previously reported, its parent album, the Furious 7 movie soundtrack, surges 17-2 on the Billboard 200 following the film's wide-release in U.S. theaters last Friday (April 3). The premiere likewise helps propel the song, which claims the Hot 100's top Digital Gainer award and flies 42-1 on Digital Songs (168,000, up 488 percent).

Wale Rules With Second No. 1 Album, 'Furious 7' Soundtrack Drives to No. 2

"Again" makes the largest leap to No. 1 on Digital Songs since will.i.am and Britney Spears' "Scream & Shout" logged a record 66-1 burst in December 2012, following its first full week on sale and its video premiere on Fox's since-shuttered The X Factor. (The chart was then 75 positions deep; it's run 50 spots deep since December 2013.) The 84-10 climb for "Again" on the Hot 100 is the greatest positional jump into the top 10 since Katy Perry's "Roar" did just that, charging 85-2 in August 2013 following its first full week of availability.

'Furious 7' Debuts With Fourth-Best Open Ever Worldwide: $392.3 Million

Khalifa collects his second Digital Songs No. 1, following his featured turn on Maroon 5's "Payphone" (one week, 2012). On the Hot 100, he earns his sixth top 10, dating to his arrival with the No. 1 "Black and Yellow" (Feb. 19, 2011). Puth celebrates his first Billboard No. 1 and Hot 100 top 10. 

Charlie Puth Talks Meghan Trainor Duet 'Marvin Gaye' & His Plea to James Taylor

While the majority of the Hot 100 chart points for "Again" are from sales (72 percent), the track also grows in streaming, debuting on Streaming Songs at No. 26 with 4.1 million (up 259 percent), good for the Hot 100's top Streaming Gainer nod, in addition to its sales honor; its clicks should climb further following the Monday (April 6) premiere of its official video (which features numerous scenes of late star Paul Walker from the Furious franchise). "Again" bubbles under Radio Songs with a 68 percent gain to 8.6 million. It also debuts on the Rhythmic Songs airplay chart at No. 35.

In highlights below the Hot 100's top 10, Nick Jonas' "Chains" rattles 19-13, Jason Derulo's "Want to Want Me" bumps 17-14 and Rihanna's "B**** Better Have My Money," the chart's highest debut last week, pushes 23-19. More details on action below the top 10 in the weekly "Hot 100 Chart Moves" column to post on Friday (April 10).

Visit Billboard.com tomorrow (April 9), 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. The Hot 100 will also appear in the next issue of Billboard magazine, on sale on Friday.