#1 (+2) Demi Lovato | peak #1 (32x)
#2 (-1) Ariana Grande | peak #1 (8x)
#3 (+2) Miley Cyrus | Peak #2 (2x)
#4 (=) Mariah Carey | peak #3 (1x)
#5 (-3) Iggy Azalea | peak #1 (1x)
#6 (=) Jonas Brothers | peak #3 (1x)
#7 (+7) Bruno Mars | new peak
#8 (re) Lady Gaga | peak #2 (7x)
#9 (+3) Taylor Swift | peak #2 (1x)
#10 (-2) Cardi B | peak #3 (1x)
