Chris Pratt was recently following the same kind of rules that this father in law is famous for.
And in case you're still wondering who, it's none other than Hollywood icon Arnold Schwarzenegger, who just turned 79.
Pratt paid tribute to the star by posting the sweetest memory of the pair in matching attire on his Instagram Stories. The actor shared a snap of himself putting his arm right around the legend's shoulder as they both wore nearly identical outfits in the color navy blue.
The button-up shirts and similarly hued pants made Pratt write a caption that fans were not ready for. "Happy Birthday! Here's to many more years of suspiciously coordinated outfits. Could this be a coincidence? Jury is still out!"- he smiled, and fans adored the hilarious twist to the sweetest post.