What do Lady Gaga, LeBron James, Tom Holland, and Zendaya all have in common? Not only are they some of the most famous people on the planet; they are also people who have used their fame, their talents, and their voices to help others. Readers discover their inspiring stories--along with the stories of many other stars who use their unique skills and platform to make a difference. Basic biographical details, full-color photographs, and a helpful timeline are included, but readers also take a closer look at each subject's philanthropy, activism, and advocacy.