Mr. Beast, whose real name is Jimmy Donaldson, is a popular YouTuber and philanthropist known for his extravagant and charitable acts. He gained fame through his videos where he donates large sums of money to individuals or organizations in need. Mr. Beast is also known for his challenges and stunts, such as staying underwater for 24 hours or counting to 100,000. He has a massive following on YouTube and other social media platforms, and his videos often receive millions of views. Mr. Beast's philanthropic efforts have made him a beloved figure in the online community.