Post Malone's "Wow" (Republic) will hold for a second week at #1, while label mate Ariana Grande enters the Top 10 with “7 Rings." 21 Savage's “A Lot” f/ J Cole (Slaughter Gang/Epic), J Cole's “Middle Child” (Dreamville/RN/Interscope) and City Girls' “Twerk” (QC/Motown/Capitol) will all see a 300+ spin gain. RCA’s Khalid enters the Top 25 with “Talk," while Lil Pump's “Be Like Me” f/ Lil Wayne (Lights Global/WBR) makes a push to debut this week.