[Answer] The man who sang “You’re a Mean One, Mr. Grinch” was also the voice of what brand ambassador?

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The man who sang “You’re a Mean One, Mr. Grinch” was also the voice of what brand ambassador?

• Tony the Tiger:Thurl Arthur Ravenscroft was a voice actor and bass singer known as the voice behind Kellogg's Frosted Flakes animated spokesman Tony the Tiger for more than five decades. His booming bass gave the cereal's tiger mascot a voice with the catchphrase "They're g-r-r-r-eat!!!!". He was also the uncredited vocalist for the song "You're a Mean One, Mr. Grinch" from the classic Christmas television special, Dr. Seuss' How the Grinch Stole Christmas! His name was accidentally omitted from the credits, leading many to believe that the cartoon's narrator, Boris Karloff was the man behind the signature song.

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