Mariah Carey has made quite a bit of money from her Christmas music. Her first Christmas album, "Merry Christmas", was released in 1994 and has sold over 15 million copies worldwide. It includes hits such as "All I Want for Christmas Is You" and "O Holy Night". She has also released several other Christmas songs, such as "When Christmas Comes" and "Christmas Time Is in the Air Again". In total, Mariah Carey has made over $100 million from her Christmas music.