Although momentum is on point— the track leaps up to #2 with several big spin increases — looks like it might take one more week for Kemosabe/RCA's R. City to hit the #1 spot on the Pop chart with "Locked Away." The Weeknd's "The Hills" (XO/Republic) goes Top 5 and should be this week's Greatest Gainer. Justin Bieber's "What Do You Mean?" (RBMG/Def Jam) and Taylor Swift's "Wildest Dreams" (Big Machine/Republic) both climb inside the Top 10, with Swift just edging out Bieber in spins. Shawn Mendes' "Stitches" (Island/Republic) is poised to move Top 10 and Columbia's Calvin Harris + Disciples are Top 20 with "How Deep Is Your Love." Becky G's "Break A Sweat" (Kemosabe/RCA) will chart this week and should be joined by Audien f/Lady A.'s "Something Better" (Astralwerks/Capitol).