Mike Posner's "I Took A Pill In Ibiza" (Island/Republic) will bounce back into the #1 position on the chart this week. Meanwhile it looks like Fifth Harmony's "Work From Home" (SYCO/Epic) will be the next up for the top spot as it jumps to #3. The Chainsmokers' "Don't Let Me Down" f/Daya (Distruptor/Columbia) sits at #5 and is one of the week's Greatest Gainers. Speaking of massive gains, Justin Timberlake's musical juggernaut "Can't Stop The Feeling" (RCA) not only enters the Top 10 but moves up to #7. Drake's "One Dance " f/Wizkid & Kyla (YMCMB/Republic) climbs up a notch to #8. Calvin Harris' "This Is What You Came For" f/Rihanna (Columbia) joins the Top 15 and is also one of the week's best performers, with healthy spin gains. Epic has two tracks charting this week, Meghan Trainor's "Me Too" and Kent Jones' "Don't Mind" (We The Best/Epic).