The most notable change at T40 this week, is Khalid's "Better" (RCA) joining the Top 5. Jonas Brothers' "Sucker" (Republic) is on pace to be the Greatest Gainer for a third week in a row, leaping inside the Top 15. There are some big moves happening in the middle of the chart, as Marshmello's "Here With Me" f/Chvrches (Joytme/Glassnote/Republic) and Mabel's "Don't Call Me Up" (Capitol) climb inside the Top 25. Alessia Cara joins the Top 30 with "Out Of Love" (Def Jam). Three tracks are charting this week: Lauv & Troye Sivan's "im so tired" (Capitol-AWAL), Jeremy Zucker's "Comethru" (Republic) and AJ Mitchell's "All My Friends" (Epic).