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) (such as 1964's "Rudolph the Red-Nosed Reindeer", 1965's "A Charlie Brown Christmas" and 1969's "Frosty the Snowman") that have come to be regarded as classics. It received modestly positive reviews at the time it was released. Critic Rick Du Brow said it was "probably as good as most of the other holiday cartoons." It has since been recognized as a classic, with Rotten Tomatoes giving it a 100% "fresh" rating on its website; the critical consensus reads, ""How the Grinch Stole Christmas" brings an impressive array of talent to bear on an adaptation that honors a classic holiday story –