Gisele Bündchen celebrated Earth Day on Saturday in the best way: by hitting the beach in a tiny blue bikini. The former supermodel shared an Instagram photo of herself flaunting her killer physique by the ocean, writing, "Happy earth day! God bless our beautiful Mother Earth 🌎🙏✨" Other stars who commemorated the special day include Laura Dern, Kendall Jenner, and Jessica Biel. Similar to Gisele, Jessica uploaded a photo of herself mid-air and captioned it, "Plant a tree. Car pool. Recycle… Basically don't be a d*ck to our planet. Happy #EarthDay!"