Republic's Post Malone not only remains in the top spot on the chart with "Psycho" f/Ty Dolla $ign, but his other single "Better Now" is set to join the Top 25 as one of the week's Greatest Gainers. Meanwhile, label mate Ariana Grande makes the jump to Top 5 with "No Tears Left To Cry." And look for Def Jam's newly-released Alessia Cara single called "Growing Pains" to chart this week.