Republic’s Spangler and the squad have the big story this week with Post Malone’s "Chemical" (Mercury), which is on track for a 5,000+ spin week. It is by far the Greatest Gainer of the week and is already Top 15 bound. Interscope's Romano & Lopes crew have Rema & Selena Gomez's "Calm Down" moving Top 3 with eyes on #1 spot for next week, while RCA's Team Rothschild has Miguel's "Sure Thing" (By Storm) heading for the Top 5. Joining the Top 20 this week will be Marella's Capitol bunch with Toosii's "Favorite Song" (SCMG) as well as Republic’s Jonas Brothers with "Waffle House.” Virgin's Halpern and staff take a big jump with NF's "HAPPY" (NF Real Music) as it moves Top 25 one week after its official impact. Also debuting on the chart this week will be Miley Cyrus' "Jaded" (RCA) and Lewis Capaldi's "Wish You the Best" (Capitol).