We’re living in the era where one little clip can flip your entire life … and Daymond John came through TMZ to break down how viral fame really hits, especially after that now-famous Dr. Pepper jingle lady.

Catch “TMZ Live” Thursday… ’cause the “Shark Tank” star breaks down the ultimate power of social media story — user @romeosshow uploaded a 10-second TikTok clip after being inspired in a dream, and that went hugely viral … and Dr. Pepper turned it into their official National Championship jingle. Insane.

Daymond drops some wild stats too — saying we touch our phones hundreds of times a day — and explains how social media is basically a giant testing lab, for people chasing fame and for brands hunting their next breakout star.

The convo even lit a fire under our own Harvey — who took his own shot at viral glory … with a jingle about diarrhea. Yes, really.