There are some pretty big changes in the Top 10 this week as Jason Derulo's "Want to Want Me" (Warner Bros.) guns for #1 while Walk The Moon's "Shut Up And Dance (RCA) continues to increase, ascending to #3. But the real story is Taylor Swift's "Bad Blood" (Big Machine/Republic), which is on a record-breaking climb up the chart, moving Top 5 after only 3 weeks from impact. Fifth Harmony f/ Kid Ink's "Worth It" (Syco/Epic) leaps into the Top 10 as does Andy Grammer with "Honey I'm Good" (S-Curve/Hollywood). Sia's "Elastic Heart" (RCA) and Omi's "Cheerleader" (Ultra/Louder Than Life/Columbia) both make the jump into the Top 20, and joining the chart this week will be Shawn Mendes' "Stitches" (Island/Republic) and Jeremih f/FloRida's "Tonight Belongs to U" (Def Jam).