You're a Mean One, Mr. Grinch of the special, it is often mistakenly attributed to Boris Karloff, who served as narrator and the voice of the Grinch in the special but who himself could not sing. Until Ravenscroft was publicly credited, Tennessee Ernie Ford was also speculated to be the voice behind the song. Mainstream and pop acts have covered the song, usually for holiday-themed albums. Jim Carrey, as the Grinch, sang a slightly condensed version of the song in the 2000 live action film adaptation, "Dr. Seuss' How the Grinch Stole Christmas", with 1940s style big band music by James Horner. A version by Bob
How the Grinch Stole Christmas! (TV special) songs and animated sequences without words (the longest being an extended scene in which the Grinch and Max comically descend into Whoville) were added. As all the major networks had flipped to full color schedules by 1966, the special was likewise produced in color, establishing the Grinch's color (white in the two-tone illustrations of the original book) as green, a convention used in later television specials featuring the character as well as the 2000 and 2018 film adaptations. The half-hour (with commercials) short was originally telecast in the United States on CBS on December 18, 1966. CBS repeated it annually