What's This?

Danny Elfman in The Nightmare Before Christmas (1993).

Alone in the World

Jim Backus and Marie Matthews in Mister Magoo's Christmas Carol (1962).

12 Days of Christmas

Bob Denver & the Muppets from the A Christmas Together special (1979).

Holly Jolly Christmas

Burl Ives in Rudolph the Red-Nosed Reindeer (1964).

Marshmallow World

Frank Sinatra & Dean Martin sing Marshmallow World (written in 1949 by Carl Sigman (lyrics) and Peter DeRose (music)) on some show!

Have Yourself a Merry Little Christmas

Judy Garland & Margaret O'Brien in Meet Me in St. Louis (1944).

The Christmas Song

Big Bird (Caroll Spinney) & The Swedish Chef (Jim Henson) in A Muppet Family Christmas (1987) performing the Christmas Song written by Mel Torme and Robert Walls

White Christmas

Bing Crosby & Marjorie Reynolds (Martha Mears singing) in Holiday Inn (1942).

Written by Irving Berlin (Jewish!) - Happy Hannukah!

You're A Mean One, Mr. Grinch

Sung by Thurl Ravenscroft (voice of Tony the Tiger) in How The Grinch Stole Christmas (1966)

Silver Bells

Bob Hope, Marilyn Maxwell & cast in The Lemon Drop Kid (1951).

Snow Miser - Heat Miser

Dick Shawn & George Irving in Rankin Bass' The Year Without a Santa Claus (1974)