There's a lot of business happening on the charts this week. For the seventh week in a row, Rihanna and Drake's lead Anti single "Work" leads the Hot 100, but there's even more work to be done, courtesy of Fifth Harmony. The girl group's new track "Work from Home" also rose into the top 10 this week, marking their first-ever top 10 single.

Rihanna's "Work" tops the American charts for the seventh straight timeframe, according to Billboard. Simply put, RiRi just cannot be bested in streams, with "Work" tallying up 28.8 million streams in the U.S. this week. And while she dominates streaming yet again, Rihanna also saw minor rises in radio and sales, easily giving her yet another week on top.

Though Rihanna continues to work it at No. 1, she may not be there for much longer. Lukas Graham's "7 Years" continues to make massive gains. This week, the track topped digital sales yet again with 155,000 copies sold and say moderate percentage gains in radio play and streams, thus synching a second week at its No. 2 slot. At this pace, Rihanna may be dethroned from her No. 1 position in a matter of weeks.

And, if Lukas Graham doesn't do the job, Meghan Trainor may just do the trick. Her new Thank You single "No" vaulted up three positions this week to a new high at No. 3. Trainor sold 147,000 copies of "No" this week, saw a 10 percent increase in radio play and a 29 percent increase in streams.

Though Trainor made major moves on the charts this week, she didn't have the biggest boost in the top 10 - that honor would go to Zayn, whose lead single "Pillowtalk" jumped up from No. 8 to No. 4 this week thanks to the release of his debut album Mind of Mine.

Though those songs made big leaps, most of the top 10 had moderate shuffling of position. Justin Bieber's "Love Yourself" slipped from No. 4 to No. 5. Flo Rida's "My House" and Twenty One Pilots' "Stressed Out" each fell two slots to Nos. 6 and 7, respectively. Meanwhile, G-Eazy's "Me, Myself & I" dropped one spot to No. 8 and Mike Posner's "I Took a Pill in Ibiza" gained one position to a new highpoint at No. 9.

And, while Rihanna puts in "Work" at No. 1, the girls of Fifth Harmony are happy to "Work from Home" at No. 10 this week. The Ty Dolla $ign-assisted song, which lifted two positions this week, marks the girl group's first top 10 single and thus the first girl group top 10 hit of the 2010s. The big boost came courtesy of a 34 percent sales boost (89,000 copies) and respectable rises on streaming (14.4 million plays) and radio play (49 million impressions).

Join the Discussion