We have a new #1 at Pop radio this week as R.City f/Adam Levine's "Locked Away" (Kemosabe/RCA) ascends to the top. The Weeknd's "The Hills" (XO/Republic) is on track to be the Greatest Gainer again this week as it moves to the #2 position. Justin Bieber's "What Do You Mean?" (RBMG/Def Jam) goes Top 5 right along with Taylor Swift's "Wildest Dreams" (Big Machine/Republic) as those two songs race to the top. Wonder who will hit #1 first? Island/Republic's Shawn Mendes climbs into the Top 10 with "Stitches." Elle King's "Ex's and Oh's" (RCA) moves Top 20, while Drake's "Hotling Bling" (YMCMB/Republic) takes a big jump inside the Top 30.