MrBeast (real name: James Stephen "Jimmy" Donaldson) is a highly successful American YouTuber known for his elaborate and expensive challenges, philanthropy, and high-production-quality videos. He's the most subscribed individual on YouTube.

As of May 18, 2025, MrBeast has 396 million subscribers on YouTube. He is the most-subscribed channel on the platform, gaining approximately 380,000 subscribers per day.