Best show of the year is the final one before Christmas -- a Late Show tradition -- featuring Darlene Love singing Christmas (Baby Please Come Home) just as she originally sang it in 1963. Biggest production of the year, with Paul Shaffer and the CBS Orchestra, an entire string section, and choral background singers. Oh, and snow!
Watch this short video of the rehearsal including clips from years past.
You can see this year's version on The Late Show With David Letterman this Friday night (12/23).