What do Mariska Hargitay, Jenna Bush Hager, Reese Witherspoon, and Oprah have in common? They're all book lovers!

Knowing how valuable their stamp of approval is, it’s really saying something when all three of them approve of the same book. As it turns out, shortly after Winfrey announced her latest pick, The Tell by Amy Griffin, both Witherspoon and Bush Hager showed up to support.

While hosting an event for Amy Griffin’s new memoir “The Tell,” Oprah Winfrey spotted TODAY’s Jenna Bush Hager and Reese Witherspoon in the audience and invited them up on stage for a moment representing their three book clubs all under one roof for the first time ever.