'The Masked Singer' Season 10: Trailblazing Tennis Superstar Unmasked in Episode Four!

Royal Hen was Billie Jean King!

Here’s all the clues she presented to the judges:

- She’s a “trailblazer”

- Football plaque shown

- Fights a bear

- Eiffel Tower shown

- Hot dog shown

- Was honored with the Presidential Medal of Freedom from President Barack Obama