"A photo of my grandpa from 1943," he captioned, adding, "love you Papa Yu."
Just look at how similar he is to his grandson below!
That's what you call strong ass genes.
The best part is DEFINITELY his Bad Boys For Life co-star Vanessa Hudgens' comment. "Wow literally u."
Okay, there's not much to that comment, but we're still certain there is something going on between the two NEWLY single actors.
The pair sparked relationship rumours when they walked the red carpet to the movie premiere recently.
We mean, they'd make a gorgeous couple.