Mr. Beast, aka Jimmy Donaldson, speaks with ET's Deidre Behar about season 2 of 'Beast Games,' streaming Jan. 7 on Prime Video with three episodes and new episodes drop weekly. The powerhouse content creator, who boasts more than 450 million YouTube subscribers, spills on his hit competition series' return, and what he learned from season 1 that he applied for season 2. Plus, he confirms he's spent tens of millions of his own money to help fund the expensive production, and reveals the astonishing amount he spent on a single camera to film the series. In Donaldson's personal life, he's engaged to Thea Booysen. While he gushes over his fiancée, he explains why he likely will not televise their wedding. He also calls out Dwayne 'The Rock' Johnson as his dream celebrity contestant for the series, which is already renewed for season 3.