James Stephen "Jimmy" Donaldson, commonly known by his online alias MrBeast, is an American YouTuber, media personality, and businessman. His YouTube videos, in which he often hosts elaborate challenges and philanthropic efforts, are known for their fast pace and high production values. With over 419 million subscribers, he has the most subscribed channel on YouTube. He is also the third-most-followed creator on TikTok, with over 119 million followers.