ELMHURST, IL. (THECOUNT) — Keenan Cahill, the beloved YouTube star from Elmhurst, Illinois, died Thursday. He was 27.

On Facebook earlier this month, Cahill announced he was undergoing open-heart surgery on Dec. 15.

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Cahill was reported to have Maroteaux-Lamy syndrome.

He has been lip-syncing videos on YouTube since 2010 and garnered millions of views.

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