The Pop Songs chart, which began in 1992 (and in 2017 celebrated its 25th anniversary), measures total weekly plays, as tabulated by Nielsen Music, among its reporting panel of 160 mainstream top 40 stations.
"Finesse" is the second Pop Songs No. 1 from Mars' Grammy Award-winner for album of the year, 24K Magic, following second single "That's What I Like," which led for three weeks last May. The title-track lead single hit No. 5 and third single "Versace on the Floor" reached No. 19.
Mars has now earned two Pop Songs No. 1s apiece from each of his first three LPs. He's the first male to accomplish the feat and follows only Perry, who earned two, six and two toppers, respectively, from her first three major-label albums.
Mars' first full-length, 2010's Doo-Woops & Hooligans, produced the Pop Songs No. 1s "Just the Way You Are" and "Grenade." 2012 follow-up Unorthodox Jukebox generated the leaders "Locked Out of Heaven" and "When I Was Your Man."
Mars' other three Pop Songs No. 1s: "Nothin' on You," by B.o.B featuring Mars (2010); "It Will Rain," from the soundtrack to The Twilight Saga: Breaking Dawn: Part 1 (2012); and "Uptown Funk!," by Mark Ronson featuring Mars (2015).
"Finesse" has hit a No. 3 high on the streaming-, airplay- and sales-based Billboard Hot 100. Highlights of the March 31-dated Hot 100's top 10 will be revealed later today and all charts will update tomorrow (March 27) on Billboard.com.