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William Kent "Kenny" Holaday (May 8, 1952 – June 24, 2001) was an American musician and artist. He served as a lip sync artist for 257 episodes of The Simpsons. After his death at the age of 49 caused by a thyroid condition, he was replaced by Robyn Anderson.
Holaday was an expert in animation lip syncing, working in the role on many animated projects besides The Simpsons, including Futurama, King of the Hill, The Critic, Rugrats, The Ren & Stimpy Show, Captain Planet and the Planeteers and others. He also worked in the animation department on films such as Who Framed Roger Rabbit (1988), Aladdin (1992), The Lion King (1994) and Tarzan (1999).