Chart Beat

Mark Ronson, Bruno Mars Top Hot 100, Maroon 5 Debuts at No. 8

Chris Floyd

Mark Ronson photographed on Jan. 6, 2015 at Big Sky Studios in London.

'Uptown Funk!' rules for a third week. Plus, the police helps escort Taylor Swift's 'Shake It Off' back into the top five and Maroon 5's 'Sugar' sweetens the chart at No. 8.

Mark Ronson's "Uptown Funk!," featuring Bruno Mars, leads the Billboard Hot 100 for a third week. Meanwhile, Taylor Swift's newest fan -- in blue -- sparks a resurgence for "Shake It Off" and Maroon 5 blasts in at No. 8 with its new single "Sugar" following the premiere of its video.

As we do each Wednesday, let's look at the key numbers throughout the top 10 on the sales/airplay/streaming-based Hot 100.
"Funk!," released on RCA Records, spends a fourth week atop Digital Songs with 400,000 downloads sold (up 17 percent) in the week ending Jan. 18, according to Nielsen Music, and nets the Hot 100's top Digital Gainer award. It also leads the subscription services-based On-Demand Songs chart for a second week with 5.3 million U.S. streams (up 14 percent). "Funk" retreats 1-2 on Streaming Songs despite a 28 percent gain to 14.9 million, while on Radio Songs, it flies 6-2 with a 31 percent burst to 135 million in all-format audience, good for top Airplay Gainer honors on the Hot 100, as well.

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