ET sat down with the legendary performer and the actor tasked to play him at the 2019 Cannes Film Festival, where they discussed the creative process, facts no one ever knew about Elton and Elton's current musical favorites, including Billie Eilish, Lizzo and Kacey Musgraves! 'Rocketman,' the Elton John biopic, is out May 22, 2019.

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