They’ve had tea with Justin Bieber, Miley Cyrus, Reese Witherspoon and many more on The Ellen Show, and now YouTube sensations Sophia Grace and Rosie have a very special Tea Time children’s book.

Little girls everywhere will love “Tea Time with Sophia Grace and Rosie,” an adorable storybook filled with all the proper tips for hosting the perfect princess tea party.

The book, by Sophia Grace Brownlee and Rosie McClelland (as told to Orli Zuravicky), is filled with sweet and silly illustrations by Shelagh McNicholas. Think tutus!

Tea time tips include: “Serve your favorite snacks and treats,” “Make sure everyone has their own pretty place to sit with a pretty cup,” and “At the end, hug your friends and thank them for coming!”

“Tea Time with Sophia Grace and Rosie” is now available in bookstores nationwide as well as online.

To celebrate the release, the girls went on “The Ellen Show” earlier this week and saw the finished copies for the first time. Plus, Sophia Grace shared a special secret – there’s a little cat (that looks just like her own cat) on almost every single page.

Check out the full clip below: