Def Jam not only secured a new #1 at Top 40 radio this week with Alessia Cara's "Here" but also moved the chart's Greatest Gainer, Justin Bieber's "Love Yourself," up to #4. DNCE's "Cake By The Ocean"(Republic) rises inside the Top 15. G-Eazy's "Me, Myself & I" f/BeBe Rexha (RCA) jumped up ten spots to land Top 30. Shawn Hook's "Sound Of Your Heart" (Universal/Canada/Hollywood) should chart this week along with Troye Sivan's "Youth" (Capitol).