Taylor Swift "Shake It Off" single cover

Taylor Swift "Shake It Off" single cover

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Swift spends a second week on top, fending off runner-up Meghan Trainor and the surging trio of Jessie J, Ariana Grande and Nicki Minaj.

Taylor Swift scores a second week at No. 1 on the Billboard Hot 100 chart with "Shake It Off." The song debuted at the summit last week.
 
Meanwhile, Meghan Trainor rebounds 3-2 with "All About That Bass," while the trio of Jessie J, Ariana Grande and Nicki Minaj powers 9-4 with "Bang Bang."
 
As we do each Wednesday (the day that the sales/airplay/streaming-based Hot 100 is compiled each week), let's run down the numbers behind all the movers and "shake"-rs in the top 10.

 
The lead single from Swift's album 1989, due Oct. 27, logs a second week atop the Hot 100 despite an overall 36 percent loss in points after its lofty launch last week. Still, "Shake" leads the Digital Songs chart for a second week with 355,000 downloads sold (down 35 percent), according to Nielsen SoundScan. It's sold 899,000 in its first two weeks combined.

Taylor Swift Dazzles During 'Shake It Off' Performance at MTV VMAs

The song drops in sales despite Swift having performed it on the MTV Video Music Awards on Sunday, Aug. 24. (Her appearance likely helped the song from decreasing further, as a significant loss was to be expected after its mammoth first week, the fourth-biggest debut frame [544,000] ever.)
 
On the Streaming Songs chart, "Shake" dips 2-4 with a 52 percent fall to 8.8 million U.S. streams in its second week, according to Nielsen BDS. (With the song not available on on-demand audio subscription services, almost all its streaming points are again via Vevo on YouTube clicks for its official video, which dropped Aug. 18.)
 
"Shake" is on the rise at radio, however, zooming 9-7 with a 24 percent increase to 88 million in all-format audience, according to BDS. On the Pop Songs radio airplay chart, the track leaps 12-8 in its second week, tying eight other songs for the quickest ascent to the top 10 (since the list launched in 1992). It's just the third song in nearly 10 years to reach the top bracket in as few as two frames: in 2011, Britney Spears' "Hold It Against Me" and Lady Gaga's "Born This Way" also needed just two weeks each to reach the Pop Songs top 10.

Meghan Trainor On 'All About That Bass': 'I Wish There Was a Song Like This When I Was 13'

Meghan Trainor's "All About That Bass" returns to its No. 2 Hot 100 highpoint (3-2) with top Airplay Gainer honors for a third consecutive week (and a 3 percent gain in overall points). It's the first debut hit by a female artist to link three straight weeks winning the award since Carly Rae Jepsen's "Call Me Maybe" in 2012. "Bass" reaches the Radio Songs top 10 (11-9; up 28 percent to 82 million); holds at No. 2 on Digital Songs (which it led for two weeks) with a 6 percent decline to 266,000; and rebounds 3-2 on Streaming Songs (which it topped for a week), up by 6 percent to 12.2 million. It dips 1-2 after a week atop the subscription services-based On-Demand Songs chart, but with a 10 percent gain to 3.6 million.
 
"Bass" swaps spots on the Hot 100 with Nicki Minaj's "Anaconda," which drops 2-3 after vaulting from No. 39 to No. 2 last week. The song spends a second week atop Streaming Songs but decreases by 46 percent to 17.3 million. (Last week, it rocketed 42-1 on Streaming Songs with a 1,287 percent gain to 32.1 million following the Aug. 19 premiere of its steamy video; 81 percent of its streaming points stem from Vevo on YouTube, down from 95 percent last week.)
 
"Anaconda" rises 6-4 on Digital Songs with a 57 percent jump to 188,000. Like Swift, Minaj performed her new hit as part of the VMAs' show-opening medley (read on for details). The cut also builds in airplay, slithering onto Radio Songs at No. 40 with 31 million in audience (up 26 percent). It snares a second week at No. 1 on both Hot R&B/Hip-Hop Songs and Rap Songs.

 
Minaj, meanwhile, lands a second concurrent hit in the Hot 100's top five for the first time, as "Bang Bang," billed as by Jessie J, new Billboard 200 leader Ariana Grande and Minaj, roars 9-4. The collab claims the top Digital and Streaming Gainer awards after the three divas performed it, mixed with "Anaconda," to open the VMAs, while its video premiered the following day (Aug. 25). "Bang" blasts by 54 percent to 244,000 sold, holding at No. 3 on Digital Songs, and flies 12-3 on Streaming Songs (up by 104 percent to 11 million). It charges 5-1 on On-Demand Songs with a 53 percent vault to 3.8 million.
 
"Bang" also grows in airplay, bounding 24-19 on Radio Songs (53 million, up 8 percent).
 
Rounding out the Hot 100's top five, Sam Smith's "Stay With Me" retreats 4-5 (after climbing to a No. 2 peak). It posts a fourth week at No. 1 on Radio Songs (152 million, down 7 percent).

Iggy Azalea's 'Fancy' Is Billboard's Song of the Summer

Iggy Azalea's "Black Widow," featuring Rita Ora, holds at its No. 6 Hot 100 peak to date; Grande's "Break Free," featuring Zedd, stays at No. 7 and leads Hot Dance/Electronic Songs for a third week; MAGIC!'s former six-week No. 1 "Rude" falls 5-8; Sia's "Chandelier" dims from its No. 8 high to No. 9; and Charli XCX's "Boom Clap" returns to the top 10 (12-10, matching its best rank). As previously reported, "Boom Clap" crowns the Pop Songs chart with a 2-1 climb.
 
Visit Billboard.com tomorrow (Sept. 4), when all rankings, including the Hot 100 in its entirety and Digital Songs, Radio Songs and Streaming Songs, will refresh, as they do each Thursday. The latest charts will also appear in the next issue of Billboard magazine (on sale on Friday, Sept. 5).