Donaldson began posting videos to YouTube in early 2012 at the age of 13. He is also the founder of MrBeast Burger and Feastables and a co-creator of Team Trees. His main YouTube channel is called "MrBeast", which reached 100 million subscribers on July 28, 2022.
See also: MrBeast Burger, Mr. Beast (disambiguation), Mr Beast (album), Mark Rober, Team Seas, Karl Jacobs.