John Legend's "All of Me" leads the Billboard Hot 100 for a second week, while Paramore, which has been charting on the Hot 100 for seven years, notches its first top 10 at last, as "Ain't It Fun" ascends 13-10.
As we always do on Wednesday, let's run down the numbers behind the chart's top 10.
"All" holds at No. 1 despite drops for a second straight week in the Hot 100's three metrics (airplay, sales and streaming). It rules the Radio Songs chart for a third week (184 million audience impressions, down 5 percent, according to Nielsen BDS); slips from its No. 2 peak to No. 3 on Streaming Songs (7.3 million U.S. streams, down 3 percent, according to BDS); and holds at No. 4 on Digital Songs, where it peaked for eight weeks at No. 2 (144,000 downloads sold, down 11 percent, according to Nielsen SoundScan). The piano ballad does, however, log a 4 percent gain to 2.9 million on-demand U.S. streams, staying at No. 2 on the subscription services-based On-Demand Songs chart, which it crowned for four weeks.
"All" concurrently leads the sales/airplay/streaming-based Hot R&B/Hip-Hop Songs chart for a second week, the Pop Songs airplay ranking for a fourth week and Adult Pop Songs for a second week. It previously topped Adult R&B Songs for seven weeks and Rhythmic Songs for one frame.
"All" narrowly holds off Pharrell Williams' "Happy" (2-2) on the Hot 100, where it ruled for 10 weeks before "All" dethroned it last week. How narrowly? "All" boasts just 0.1 percent more chart points than "Happy," marking the closest battle for No. 1 since Kelly Clarkson's "Stronger (What Doesn't Kill You)" displaced Adele's "Set Fire to the Rain" by a slightly smaller points margin on the Feb. 18, 2012, chart. (Last week, "All" won by just less than 1 percent.)
"Happy" spends a fourth week at No. 1 on Streaming Songs (9.3 million, up 7 percent); stays at No. 2 on Radio Songs, which it led for eight weeks (145 million, down 11 percent); and holds at No. 3 on Digital Songs, which it commanded for 11 weeks (156,000, down 11 percent). Meanwhile, Williams' follow-up "Come Get It Bae" debuts on the Hot 100 at No. 82, spurred by a No. 35 start on Digital Songs (46,000, up 235 percent).
Rap rookie Iggy Azalea ranks at Nos. 3 and 4 on the Hot 100 for a second week, although her first two chart entries switch spots: her own "Fancy," featuring Charli XCX, rises a spot to No. 3, trading places with Ariana Grande's "Problem," on which Azalea is featured, after it debuted at No. 3 last week.
"Fancy" dominates On-Demand Songs for a second week (3.2 million, up 8 percent); flies 4-2 on Streaming Songs (7.4 million, up 12 percent); holds at No. 2 on Digital Songs (216,000, down 2 percent); and surges 14-11 on Radio Songs (71 million, up 29 percent).
After launching last week with the eighth-biggest opening sum ever for a download, "Problem" claims dual Streaming and Airplay Gainer honors on the Hot 100 despite its 3-4 drop. It roars 9-4 on Streaming Songs (6.5 million, up 46 percent) and blasts onto Radio Songs at No. 30 (41 million, up 70 percent). It leads Digital Songs for a second week, but tumbles by 46 percent to 235,000 downloads sold (a not-atypical plunge for a song that makes a lofty sales start ahead of its radio build).
Rounding out the Hot 100's top five, Katy Perry's former four-week No. 1 "Dark Horse," featuring Juicy J, holds at No. 5; follow-up "Birthday," meanwhile, jumps 29-25, led by its 34-22 vault on Radio Songs (46 million, up 20 percent) and No. 42 debut on Digital Songs (38 million, up 20 percent).
DJ Snake and Lil Jon's No. 5-peaking "Turn Down for What" rebounds 7-6 on the Hot 100, reaching the Radio Songs top 10 (12-9; 72 million, up 18 percent). It returns to its No. 5 peak on Digital Songs (6-5; 130,000, up 3 percent) and descends from its No. 6 highpoint to No. 7 on Streaming Songs (6.2 million, down 4 percent). It crowns Hot Dance/Electronic Songs for a seventh week.