: In late 2019, TikTok user Haley Sharpe (@yodelinghaley) created a viral dance routine set to the chorus.

"Say So" is frequently cited as one of the definitive "viral" hits of the TikTok era. Its success was significantly driven by:

moment i bet you know why don't you say. so you got to keep it. focus you want to say so. YouTube·dojacatVEVO