It seems you're confusing information. The Devil Wears Prada is a film released in 2006, starring Anne Hathaway and Meryl Streep. There's also a musical band called The Devil Wears Prada, but there's no official connection to Selena Gomez.
However, it seems you might be confusing it with the upcoming sequel to The Devil Wears Prada, titled 'The Devil Wears Prada: Returning to Runway'.
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