A PREVIEW OF RADIO CHART PREVIEWS

The #1 spot on the T40 chart this week will belong to one of the ex-1D boys, the only question is will Capitol's Niall Horan stay at the top with "Slow Hands" or will current #2 Liam Payne (Republic) climb up and take the crown with "Strip That Down?" Logic's "1-800-273-8255" f/Alessia Cara & Khalid (Def Jam) is on pace to be the Greatest Gainer of the week, leaping inside the Top 10, while Taylor Swift's "Ready For It" (Big Machine/Republic) joins the Top 20.

At Rhythm, RCA has Khalid's "Young, Dumb and Broke" (Right Hand Music Group) climbing inside the Top 10, but it's Post Malone's "Rockstar" f/ 21 Savage (Republic) that will explode on the chart, entering inside the Top 20 and up over 1000 spins.

And at Modern Rock, Beck's "Up All Night" (Capitol) continues to surge, moving to #12 powered by a 200+ spin gain while Foo Fighters' "The Sky Is A Neighborhood" (RCA) move inside the Top 15, at #14 and up 175 spins. Meanwhile, Alice Merton's "No Roots" (Mom & Pop) enters the Top 20.

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