It looks like "Style" by Big Machine/Republic's Taylor Swift will relinquish the #1 spot to Maroon 5's "Sugar" after a three-week run. This week's Greatest Gainer is The Weeknd's "Earned It," as it takes a big jump into the Top 10. Jason Derulo's "Want To Want Me" (Warner Bros.) climbs to #11 and is the week's #2 Greatest Gainer. Joining the Top 20 this week are Island/Republic's Tove Lo with "Talking Body" and "Lay Me Down" by Capitol's Sam Smith. Other big movers include Epic's Meghan Trainor with "Dear Future Husband" and two fast-moving RCA hits, Walk the Moon's "Shut Up and Dance" and Chris Brown & Tyga's "Ayo."