Jimmy Donaldson (born May 7, 1998), better known online as MrBeast, is an American YouTuber, businessman, and philanthropist. He has been credited with pioneering a genre of YouTube videos that center on expensive stunts. He is also the founder of MrBeast Burger and the co-creator of Team Trees, a fundraiser for the Arbor Day Foundation, which has raised over $23 million. He is managed by the Dallas-based talent management company Night Media.

In 2019, Donaldson won the Breakout Creator by Streamy Awards. At the 12th Annual Shorty Awards in 2020, he won YouTuber of the Year. He was also one of the top 10 highest-paid YouTubers of 2020, alongside other personalities such as Markiplier, Ryan's World and Blippi.