Will Ferrell has a well-earned reputation as the ultimate embarrassing dad and has once again proved his prowess in that department. This time, his son Magnus Ferrell has shared the delightfully mortifying tale of his father’s antics at his high school prom.

In a TikTok slideshow posted by Magnus, the 20-year-old “rated things” his famous father has done over the years. It wasn’t until the second slide that Magnus revealed his dad’s identity – the one and only Step Brothers star.

The hilarious image showed Magnus, dressed in a sharp gray suit, standing next to Will, decked out in full medieval lord attire – complete with a squire’s cap and a frilly ruff around his neck. “Dressed as a medieval lord to embarrass me at prom,” Magnus wrote, adding a “10000/10” rating. He captioned the post “true story.”

Unsurprisingly, the post’s comments section was flooded with surprised viewers...