After the show, producers gather in Oprah's office for a little birthday party, complete with gifts, champagne and even a little dancing from Oprah herself! "I think we have more fun with her birthday than she does," Sheri says. "Usually, we have a little champagne toast and kind of celebrate with her and watch her open her presents. And I think she does that for us."

Drop in on the party

Watch Sheri make a special Season 25 request of Oprah 

Inside a show gone wrong