"Christmas Dream" is a song written by Andrew Lloyd Webber and Tim Rice, with German lyrics by Andre Heller, for the 1974 Columbia film The Odessa File. It is sung by Perry Como and the London Boy Singers, and heard as source music over a radio during the main titles of the film. Como and the choir performed the song, a few weeks after the film's October 1974 release, on the television special Perry Como's Christmas Show. . The song was subsequently released as a single, reaching #92 on the Billboard Hot 100 chart in December 1974.
https://en.wikipedia.org/wiki/Christmas_Dream