Timothee Chalamet made his “SNL” hosting debut this weekend, hitting all the right notes in the charm department while showing off his comedic and musical chops. Although most of the holiday-themed episode focused on news beats, there were a few moments of general off-the-wall fun — like a Chalamet and Pete Davidson rap that reminded fans of a video Chalamet made in high school.

Yes, before he was heartthrob Timothee Chalamet, the perfect boyfriend in “Little Women” and “Call Me by Your Name,” he was “Little Timmy Tim” who recorded a video for his high school math teacher rapping about statistics. And, look, he’s no Lin-Manuel Miranda, but Chalamet actually has pretty decent rapping skills. Who knew?

In the two-minute video — which you can check out below — he alternates between chanting “statistics” and “Ms. Lawton” (his math teacher). “Let’s do a problem, let us see, the probability you see me on tv,...