With less than 150 spins currently separating the Top 3 songs on the chart, the only thing that's certain is there will be a new #1 next week. Right now that song appears to be Mike Posner's "I Took A Pill In Ibiza" (Island/Republic) with Lukas Graham's "7 Years" (Warner Bros.) following close behind. Epic has two big movers inside the Top 10, with Fifth Harmony's "Work From Home" (SYCO/Epic) moving from #6 to #4 and Zara Larsson & MNEK's "Never Forget You" moving #10 to #5. Drake moves Top 15 with "One Dance" feat Wizkid & Kyla (YMCMB/Republic), while Ruth B's "Lost Boy" (Columbia) heads inside the Top 20. Joining the chart this week will be Calvin Harris f/Rihanna's "This Is What You Came For" which should land on edges of the Top 20, and there is little doubt that a huge chart debut is in the future for Justin Timberlake's instantly-explosive "Cant Stop The Feeling," which RCA released on Friday morning and radio promptly embraced with open arms.