Ariana's Focus has more views than all of Demi's confident era videos combined:
433,642,552
Demi's videos:
22,857,730 - Stone Cold
122,750,065 - Confident
204,246,172 - Cool for the Summer
Even Selena's videos get more views:
86,639,430 - Hands to my Self
175,558,262 - Same Old Love
270,182,793 - Good For You
Why are Demi's views always lower than her peers and underperform?