The question is: will the current #1 at T40, Shawn Mendes' "There's Nothing Holdin' Me Back" (Island/Republic), be able to hold off the fast-rising single "Attention" from Charlie Puth? Count on a tight fight to the end. Meanwhile, Sam Hunt's "Body Like A Back Road" (MCA Nashville/Capitol) moves into the Top 10 and Demi Lovato's "Sorry Not Sorry" (Hollywood/Island/Republic) joins the Top 20. RCA's P!NK comes screaming into the Top 30 after one week of airplay with "What About Us." Charting this week will be Harry Styles' "Two Ghosts" (Columbia), and watch out for two newly-released songs to possibly join him, as Justin Bieber & BloodPop's "Friends" (GPOP/RBMG/SB/Def Jam/Republic)and Miley Cyrus' "Younger Now" (RCA) both drop new tracks.