Thurl Ravenscroft "You're A Mean One, Mr. Grinch"

Your Jeopardy question of the day:

Known for singing "You're A Mean One Mr Grinch," baritone Thurl Ravenscroft was also famous for voicing this animated TV pitchman.

Once you hear the voice, you'll never see the Grinch without half-expecting him to shout, "They're Grrreat!!!"