There's a new #1 at Rhythm, as The Weeknd's "Party Monster" (XO/Republic) grabs the crown—his third chart-topping single at the format from Starboy. Meanwhile, Travis Scott's "Goosebumps" (Grand Hustle/Epic) and Chris Brown's "Party" (RCA) are both moving up inside the Top 5 with plenty of momentum. Calvin Harris' "Slide" f/ Frank Ocean and Migos (Columbia) and Future's "Selfish" f/ Rihanna (A1/Freebandz/Epic) continue to explode, leaping up the chart. Look for Jason Derulo's "Swalla" f/ Nicki Minaj and Ty Dolla $ign (Beluga Heights/Warner Bros.) to debut along with Childish Gambino's "Redbone" (Glassnote).