Matilda Ledger supports mom Michelle Williams, Glinda the Good in t-shirt

(UPI) -- Matilda Ledger was spotted wearing her mother's face on a t-shirt as she left school on Wednesday.

The 7-year-old daughter of Michelle Williams and Heath Ledger is such a big fan of Glinda the Good Witch -- her mother's character from the movie "Oz the Great and Powerful" -- that she's even planning to dress up as her for Halloween, Williams told The New Yorker last week.

On Wednesday, Matilda showed a preview of her costume by sporting a white tee with the face of her mother as Glinda.

"She's starting to understand more and more," Williams told the magazine. "She knows a lot about Glinda the Good Witch, a lot about who that is, what that was."

"She would go up to people in the park and say, 'My mommy is Glinda the Good Witch in Oz. There's two bad ones and only one good one and that's my mom,'" Williams shared.