"Whose Voice Is It, Anyway?" is the first segment of the twenty-ninth episode of The 7D. It premiered on February 27, 2016 alongside "Take Your Pet to Lunch Day", and is the first segment of the fifth episode in the second season.
A mix-up in Echo Canyon causes Happy and Grim to switch voices, leaving The 7D and the King of the Echoes to fix the mix-up and save Queen Delightful.
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