"Thank U, Next" behind the scenes - part 1; flashback to bb Ari reenacting "Mean Girls"

A very young Ari and her friends reenact the beginning of "Mean Girls":


And speaking of flashbacks, here's a then-and-now of Ari and Victorious co-star Matt Bennett from the "One Last Time" video shoot and the "Thank U, Next" video shoot:


Source: 1, 2