Rihanna and Drake know how to make it "Work." For the sixth straight week, the lead Anti single is the No. 1 song in the country. And though Rihanna dominates the Hot 100, she has a few reasons to be alarmed: new rising singles from Lukas Graham and Meghan Trainor.

"Work" dominated streaming yet again this week with 31.6 million streams in the United States, Billboard reports, helping to boost the song to yet another week atop not only the Streaming Songs chart but the Hot 100 as well. While Rihanna absolutely dominated the competition in the way of streaming, "Work" also fared well on radio (122 million audience impressions) and had solid sales of 85,000 downloads.

And though RiRi sits comfortably at No. 1 for the sixth week in a row, Denmark pop rockers Lukas Graham are quickly rising up the charts with their breakout hit "7 Years," which rose from No. 3 to No. 2 this week. Despite the boost in chart position, "7 Years" slipped from No. 1 to No. 2 in sales this week, moving 124,000 downloads. But boosts in radio play and streams helped it to overcome Justin Bieber's "Love Yourself," which slipped to No. 3 this week.

Lukas Graham and Bieber weren't the only acts to swap positions in the top 10. Flo Rida's "My House" lifted slightly to No. 4 this week, displacing Twenty One Pilots' "Stressed Out," which took Flo Rida's old No. 5 spot.

Meghan Trainor's '00s-inspired new single "No" also saw a major boost in chart position this week, launching from No. 12 to No. 6, following the release of the track's new music video. The song's visual not only boosted streams of "No" by 94 percent (to 7.9 million plays) but also gave Trainor much-needed publicity, leading to a sales boost to 128,000 copies and a No. 1 spot on the Digital Downloads chart.

A trio of tried-and-true top 10 favorites sit beneath Trainor's "No." G-Eazy's "Me, Myself & I" sits at No. 7 for a fifth week, followed by Zayn's "Pillowtalk" which slipped down to spots to No. 8 and DNCE's "Cake by the Ocean" at No. 9 for a third week.

Finally, Mike Posner's "I Took a Pill in Ibiza" jumped back up one spot from No. 11 to No. 10, rounding out the top 10.

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