JoJo Siwa has one rule upon entering her home: "There's no being sad." The 16-year-old internet sensation, who even has North West as a superfan, informed E!'s own Jason Kennedy of this rule during today's all-new In the Room. While Kennedy confessed that he was late to the JoJo Siwa bandwagon, he revealed he was excited to enter the famed YouTuber's colorful world.