Cyrus didn't attend Friday's red-carpet party for the games at Disney's Epcot Center, where she would have faced questions from the media.
Cyrus has said she was embarrassed by the photo, which shows her wrapped in a sheet with her back exposed.
She spotted a sign in the crowd Saturday that said "Miley I'm praying for you," and she responded: "I can't be more appreciative of that."
Saturday's concert also featured performances by the Jonas Brothers and the Cheetah Girls.
