Thanksgiving is a great reminder to show gratitude for the things you have and give back to those who have less. Celebrities like Emma Stone, Beyoncé, David Beckham, and, of course, Kate Middleton and Princes William and Harry are known for their generosity and philanthropic efforts, and in turn, they help inspire the rest of us to be more charitable. In the spirit of the season, we've rounded up 38 photos of celebrities giving back over the years. Scroll through to see them all now.