Rihanna's "'Work," featuring Drake, rules again, while 5H celebrates its first top 10 with "Work From Home," featuring Ty Dolla $ign.

Rihanna's "Work," featuring Drake, logs a seventh week at No. 1 on the Billboard Hot 100 (dated April 16). Meanwhile, Fifth Harmony achieves its first Hot 100 top 10 with "Work From Home," featuring Ty Dolla $ign.

Let's get to work. Just like we do every Monday, 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.

As on the Hot 100, "Work," released on Westbury Road/Roc Nation, spends a seventh week at No. 1 on the Streaming Songs chart with 28.8 million U.S. streams, down 9 percent, in the week ending March 31, according to Nielsen Music. "Work" also tops the subscription services-based On-Demand Songs chart (13.4 million, down 7 percent) for an eighth frame. It rises 3-2, hitting a new high, on Radio Songs (120 million in airplay audience, down 1 percent), while slipping 4-5 on Digital Songs (89,000 downloads sold, up 4 percent), which it led for two weeks. "Work" tops Billboard's Hot R&B/Hip-Hop Songs chart for a ninth nonconsecutive week.

As reported when the song reached No. 1, "Work" is Rihanna's 14th Hot 100 leader, lifting her into a solo share of the third-most No. 1s all-time, ahead of Michael Jackson (13). The Beatles lead with 20 No. 1s, followed by Mariah Carey (18). "Work" is also the record-breaking ninth Hot 100 No. 1 in a row by non-U.S.-born acts (with Rihanna from Barbados and Drake from Canada), while this week marks the record-extending 39th straight week that non-American talent has led the Hot 100.

Speaking of The Beatles and Carey, Rihanna has now spent 58 total weeks at No. 1 on the Hot 100 via her 14 leaders. Rihanna is just one week away from potentially tying The Beatles (59) for the second-most weeks at No. 1; Carey leads with 79 cumulative frames at the summit. (Boyz II Men, with 50 weeks on top, and Usher, with 47, round out the top five.)

Chart Beat Podcast: Chart Beat Founder Paul Grein on Why We Love the Charts

Meanwhile, thanks to "Work," Rihanna ties her second-longest Hot 100 reign, as "Umbrella" (2007) and Eminem's "Love the Way You Lie," on which she's featured (2010), also led for seven weeks each. Only her "We Found Love," featuring Calvin Harris, spent more time on top: 10 weeks in 2011-12. Rihanna additionally joins Carey as the only artists with four songs each that have led the Hot 100 for at least seven weeks. Carey established the club with a quartet of titles that all spent at least eight weeks at No. 1: "One Sweet Day" (with Boyz II Men), 16 weeks (1995-96); "We Belong Together," 14 (2005); "Dreamlover," eight (1993); and "Fantasy," eight (1995).

"Work," down 4 percent in overall chart points, keeps atop the Hot 100 but with a narrower lead than last week over Lukas Graham's "7 Years," which holds at its No. 2 peak (up 18 percent). The single from the Danish pop band (fronted by Lukas Graham Forchhammer) rebounds 2-1 for a third week atop Digital Songs (155,000, up 25 percent); slips 2-3 on Streaming Songs (16.7 million, up 10 percent); and hits the top 10 on Radio Songs (13-9; 79 million, up 18 percent), while adding the Hot 100's top Digital and Airplay Gainer awards.

Meghan Trainor's "No" jumps into the Hot 100's top five, surging 6-3. Trainor tallies her second top three hit, following her debut smash "All About That Bass," which ruled for eight weeks in 2014. "No" drops to No. 2 after a week atop Digital Songs, although with a 15 percent boost to 147,000 sold; holds at No. 12 on Radio Songs (75 million, up 10 percent); and climbs 21-14 on Streaming Songs (10.3 million, up 29 percent). The track is the lead single from her album Thank You, due May 13.

Zayn Debuts at No. 1 on Billboard 200 Albums Chart With 'Mind of Mine'

As his debut solo album Mind of Mine blasts onto the Billboard 200 at No. 1, Zayn's former No. 1-debuting "Pillowtalk" rebounds 8-4 on the Hot 100 (and 3-2 on Streaming Songs, up 18 percent to 17 million). As previously reported, the former One Direction member is the first male U.K. soloist to debut at No. 1 on the Billboard 200 with a first album. Zayn also joins Lauryn Hill and Clay Aiken as the only acts to have debuted at No. 1 on both the Billboard 200 and Hot 100 with their first entries on each chart. Hill, formerly of the Fugees, began at No. 1 on the Billboard 200 with The Miseducation of Lauryn Hill and the Hot 100 with "Doo Wop (That Thing)" in 1998, while Aiken arrived atop the lists with Measure of a Man and "This Is the Night" in 2003.

Justin Bieber's "Love Yourself" descends 3-5 on the Hot 100 after topping the chart for two (nonconsecutive) weeks. Still, it spends an eighth week at No. 1 on the Radio Songs chart (143 million, down 1 percent). The song could also soon grant Bieber history: it has spent its first 20 weeks on the Hot 100 all in the top 10, dating to its debut at No. 4 on the Dec. 5 chart. With one more week in the top tier, it will tie the record for the most consecutive weeks (21) logged in the top 10 from a song's debut. Four songs hold the mark, with two by Bieber, the prior two singles from his album Purpose: "Sorry" and "What Do You Mean?" (both in 2015-16). The other two: Maroon 5's "Sugar" (2015) and Nicki Minaj's "Starships" (2012).

Selena Gomez Scores Third Pop Songs No. 1 With 'Hands to Myself'

Flo Rida's "My House" slips two spots from its best Hot 100 rank (4-6) (and, as previously reported, cedes the top spot on the Pop Songs radio airplay chart to Selena Gomez's "Hands to Myself"); Twenty One Pilots' No. 2-peaking "Stressed Out" descends 5-7 on the Hot 100, while leading Billboard's Hot Rock Songs chart for a 15th week; and G-Eazy and Bebe Rexha's "Me, Myself & I" regresses a rank from its No. 7 Hot 100 peak, while leading Hot Rap Songs for a ninth week.

Mike Posner's "I Took a Pill in Ibiza" reaches a new peak on the Hot 100, rising 10-9, led by its entrance to the Streaming Songs top 10 (12-7; 12.7 million, up 15 percent). It retreats 5-6 on Digital Songs, but with an 8 percent increase to 75,000 sold, and ascends 10-8 on Radio Songs (80 million, up 14 percent).

Rounding out the Hot 100's top 10, Fifth Harmony earns its first top 10, as "Work From Home," featuring Ty Dolla $ign, pushes 12-10. (Ty Dolla $ign likewise makes his first trip to the Hot 100's top 10.) With the advance, the quintet passes its prior best rank, first set when "Worth It," featuring Kid Ink, reached No. 12 last August. The group's new single jumps 6-4 on Digital Songs (89,000, up 34 percent); 8-5 on Streaming Songs (14.4 million, up 20 percent); and 22-17 on Radio Songs (49 million, up 22 percent). The track, already a No. 1 on the Billboard + Twitter Trending 140, previews 5H's upcoming album 7/27, a nod to the date (in 2012) that the act formed on Fox's The X Factor. The set arrives May 20 and follows the group's debut full-length, 2015's Reflection.

Top 40 Biggest Girl Group Songs of All Time on the Billboard Hot 100 Chart

"Work From Home" additionally flies the flag for girl groups, becoming the first Hot 100 top 10 by a girl group this decade. The last such hit? The Pussycat Dolls' "When I Grow Up," which became the act's fourth and final top 10, reaching No. 9 back in July-August 2008.

Just beyond the Hot 100's top bracket, Ariana Grande's "Dangerous Woman," which debuted at No. 10 two weeks ago, rebounds 13-12; Desiigner's "Panda" roars 21-14; and Zara Larsson and MNEK's "Never Forget You" rises 17-15.

Find out more noteworthy news in the weekly "Hot 100 Chart Moves" column to post later this week. And, visit Billboard.com tomorrow (April 5), when all rankings, including the Hot 100 in its entirety, will refresh, as they do each Tuesday. The Hot 100 and other charts will also appear in the next issue of Billboard magazine, on sale Friday (April 8).