Def Jam holds the #1 spot again with Rihanna's "Work" (Westbury Road/Roc Nation), with big increases inside the Top 10 from Chris Brown's "Back To Sleep" (RCA), Jeremih's "Oui" (Def Jam) and Belly's "Might Not" (CP/Roc Nation). Republic is also sporting big moves with Zendaya's "Something New", The Weeknd's "Acquainted" (XO) and Mike Posner's "I Took A Pill In Ibiza" (Island). Epic has Fifth Harmony's "Work From Home" (SYCO), Future's "Low Life" f/ The Weeknd (A1/Freebandz) and Meghan Trainor's "No" queued up to have excellent weeks. Look for Zara Larsson & MNEK's "Never Forget You" (Epic) and Ariana Grande's "Dangerous Woman" (Republic) to debut this week.