Clarkson's "Piece by Piece" soars in at No. 8 following her emotional performance on 'American Idol.' Plus, Lukas Graham's "7 Years" hits the top 10 and Fifth Harmony's "Work From Home" bows just outside the top tier, tying the group's best rank.

Rihanna's "Work," featuring Drake, logs a third week at No. 1 on the Billboard Hot 100 (dated March 19), while Kelly Clarkson rockets in at No. 8 with "Piece by Piece" and Lukas Graham enters the top 10 at No. 9 with "7 Years."

Plus, Fifth Harmony's "Work From Home" debuts at No. 12, matching the girl group's best Hot 100 rank.

As we do every Monday, let's work our way through 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.

"Work," released on Westbury Road/Roc Nation, holds atop the Hot 100 and claims a third week atop the Streaming Songs chart with 44.4 million U.S. streams, down 5 percent, in the week ending March 3, according to Nielsen Music. (With the song's official music video having premiered Feb. 22, this week's charts reflect its first full week of tracking.)

As noted last week, when "Work" drew 46.5 million streams, only two titles have scored higher weekly streaming sums: Baauer's "Harlem Shake" (which peaked with 103 million domestic streams, driven primarily by user-generation videos including the track's audio; March 2, 2013) and Adele's "Hello" (61.6 million; Nov. 14, 2015). (Also note that while the official "Work" video includes two plays of the song, each click counts as one stream for chart tabulation purposes.)

"Work" also tops the subscription services-based On-Demand Songs chart (19 million, up 5 percent) for a fourth frame. It dips to No. 2 after two weeks atop Digital Songs (154,000 downloads sold, down 9 percent) and lifts 5-4 on Radio Songs (104 million in airplay audience, up 16 percent), adding top Airplay Gainer honors on the Hot 100 for a fourth week.

"Work" rules Billboard's Hot R&B/Hip-Hop Songs chart for a fifth (nonconsecutive) week and takes over at No. 1 on the R&B/Hip-Hop Airplay and Rhythmic Songs radio airplay charts.

As reported when the song reached No. 1, "Work" is Rihanna's 14th Hot 100 leader, upping her into a solo share of the third-most No. 1s all-time, passing 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 (Rihanna is from Barbados; Drake, from Canada), while this week marks the record-extending 35th straight week that non-American talent has crowned the Hot 100.

Ask Billboard: Rihanna's Record Streak of Seven Studio Albums With Hot 100 No. 1s

Additionally, as noted in yesterday's "Ask Billboard" reader mailbag, Rihanna is the only artist to have notched Hot 100 No. 1s from seven consecutive studio albums. "Work" is from Anti, which ranks at No. 3 on the Billboard 200 after topping the Feb. 20 chart.

"Work" keeps atop the Hot 100 with a nearly 2-to-1 lead in chart points over Justin Bieber's "Love Yourself," which holds at No. 2 after leading for two (nonconsecutive) weeks. Still, "Love" spends a fourth week at No. 1 on the Radio Songs chart (155 million, up 2 percent). It drops 4-5 on Streaming Songs (14.5 million, down 8 percent) and 4-8 on Digital Songs (80,000, down 14 percent).

Twenty One Pilots' "Stressed Out" is steady at No. 3 on the Hot 100 after rising to No. 2. It stays at No. 2 on Radio Songs (144 million, down 2 percent) and No. 6 on Streaming Songs (13.5 million, essentially even from last week) and slides 3-7 on Digital Songs (82,000, down 12 percent). "Stressed" leads Billboard's Hot Rock Songs chart for an 11th week, the Adult Pop Songs airplay chart for a second frame and reaches No. 1 on the Pop Songs airplay tally. It led the Alternative Songs airplay chart for 12 weeks.

Flo Rida's "My House" hits a new Hot 100 high, pushing 5-4, swapping spots with Bieber's former three-week No. 1 "Sorry" (4-5); Zayn's "Pillowtalk" stays at No. 6, after debuting at No. 1 four weeks ago; and G-Eazy and Bebe Rexha's "Me, Myself & I" holds at its No. 7 Hot 100 peak, while ruling Billboard's Hot Rap Songs chart for a fifth week.

Kelly Clarkson's "Piece by Piece" debuts at No. 8 on the Hot 100 after her emotional performance of the song on the Feb. 25 episode of Fox's American Idol. The title track from her 2015 album skyrockets 35-1 on Digital Songs (marking her third No. 1 on the list) with 210,000 sold, up 852 percent; the song debuted on the sales survey last week due to an initial surge after her Idol performance, just before the close of last week's charts' tracking week.

The 1975 Earns First No. 1 on Billboard 200, Kelly Clarkson's 'Piece by Piece' Blasts 120-6

On the show, Clarkson sang a "Piece" as a piano ballad, which brought her (and Idol judge Keith Urban) to tears. The next day, she recorded her slowed-down "Idol Version," which was released commercially Feb. 29. (It was also added to the deluxe digital version of Clarkson's Piece by Piece LP and is on her new remix set, Piece by Piece Remixed, released March 4. Both the original midtempo Piece by Piece version and the "Idol Version" count toward the song's sales total.)

Sales account for 88 percent of the Hot 100 chart points for "Piece," while it also drew 3.1 million streams (up 969 percent) and, thanks to renewed airplay (of both the uptempo original and "Idol Version"), debuts at No. 23 on Adult Contemporary and re-enters Adult Pop Songs at No. 33. (The song's American Idol performance video does not contribute to its Hot 100 or Streaming Songs ranks. YouTube videos not categorized as "music" by the respective content owners are not reported by YouTube to Nielsen Music, and therefore do not contribute to Billboard's charts.)

Clarkson tallies her 11th Hot 100 top 10, the most among all Idol alums, and ties her highest debut. "Never Again" also soared in at No. 8 (its peak) on the May 12, 2007, chart. Clarkson collects her first Hot 100 top 10 from Piece by Piece; lead single "Heartbeat Song" peaked at No. 21 on the March 21, 2015 chart, the same week that the album debuted atop the Billboard 200, arriving as her third No. 1 on the ranking.

Lukas Graham, The 1975 Rule Australia's Charts

Denmark's Lukas Graham, led by Lukas Graham Forchhammer, likewise enters the Hot 100's top 10, rising 12-9 with "7 Years," the pop band's first chart entry. The single, first a global hit beginning last fall, climbs 6-4 on Digital Songs (95,000, up 24 percent); 19-9 on Streaming Songs (10.7 million, up 31 percent, good for the Hot 100's top Streaming Gainer award); and 42-27 on Radio Songs (40 million, up 17 percent).

Baked goods alert, as we go from a Danish act with Graham in its name to "Cake"… DNCE's debut hit "Cake by the Ocean" drops from its No. 9 Hot 100 peak to No. 10 (although with an overall gain in activity).

Just outside the Hot 100's top 10, Fifth Harmony's "Work From Home," featuring Ty Dolla $ign, debuts at No. 12, marking the quintet's highest debut and equaling its best rank; "Worth It," featuring Kid Ink, rose to No. 12 last August. The group's new single opens at No. 5 on Digital Songs (88,000) and No. 13 on Streaming Songs (10 million), while adding 20 million airplay impressions.

Fifth Harmony announced "Work From Home" Feb. 25, a day before premiering the audio track on the syndicated Elvis Duran and the Morning Show and premiering the song's video. The cut, 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 is expected May 20 and follows Fifth Harmony's debut full-length, 2015's Reflection.

Find out more noteworthy news in the weekly "Hot 100 Chart Moves" column to post later this week. And, visit Billboard.com tomorrow (March 8), 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 (March 11).