Big Sean's "Bounce Back" (G.O.O.D./Def Jam) moves back into the #1 spot, with The Weeknd's "Party Monster" (XO/Republic), Chris Brown's "Party" (RCA) and Travis Scott's "Goosebumps" (Grand Hustle/Epic) all close behind. DJ Khaled's "Shining" f/ Beyoncé and Jay Z (We The Best/Epic) breaks inside the Top 10. Marian Hill's "Down" (Photo Finish/Republic) and Russ' "Losin Control" (Columbia) both enter the Top 20. Huge moves by Calvin Harris' "Slide" f/ Frank Ocean and Migos (Columbia), as well as Future's "Selfish" f/ Rihanna (A1/Freebandz/Epic). And debuting this week is Katy Perry with "Chained To The Rhythm" (Capitol).