We had a double dose of Oz in, appropriately enough, the Double Jeopardy! round of the June 14, 2018 match. The category was Broadway Names, and the $800 clue was this one:
Diana rang in first again and correctly replied, "Who is Idina Menzel?" (Thank goodness she didn't say "Who is Adele Gazeem?") Diana went on to dominate the game and defended her title in a runaway.