"How-Dy-Do" (also known as "How Dee Doo") is a song that appeared on the Mickey Mouse Club TV show in 1958. It was performed as part of a "Fun with Music Day" sketch in which the Mouseketeers greet each other while singing the song in a variety of musical styles.

The song was later used as the opening number for the 1973-74 edition of Disney on Parade.

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