Inside the lives of YouTube’s most successful young stars

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Ryan of Ryan’s ToysReview and sibling duo Jillian and Evan are among the young talent behind the most popular videos on YouTube, turning their interests into a business. TODAY’s Jenna Bush Hager meets with the kids, who’ve written a book called “Watch this Book,” to get a look inside the world of the kids of YouTube. Jillian and Evan later drop by the TODAY plaza to try out some new toys.