1. Mariah Carey - Merry Christmas (1994)
Yes Mariah got a some attention for 2010’s Merry Christmas II, but her first holiday album, Merry Christmas, is the true classic. Released in 1994, the project has sold over 12 million copies worldwide---making it the biggest selling Christmas album of all time---and has yielded a string of hits including "Joy to the World," "Miss You Most (At Christmas Time)," and the new school classic, "All I Want For Christmas Is You,"
(Photo: Courtesy of Sony Music)