On June 27th of this year, the co-stars of Psych posted this video celebrating Pineapple Day. They weren’t alone. Hundreds of other celebrities and brands celebrated on social media as well, including T-Mobile, The Cheesecake Factory, Malibu Rum, Eaze, Dole, The Good Place, DiGiorno, Antiques Roadshow, Fandango, Consumer Reports, Merriam-Webster, and many many more. Local TV stations covered the holiday, and thousands of regular folks celebrated in their own way.