Author Al Menendez reveals secrets behind how some of the biggest American Christmas musical hits were written, including the ones that aren't really meant for the holiday. He discusses the first U.S. Christmas song we all now sing that was actually written for a Thanksgiving Sunday School class, the Jewish origin of some Christmas tunes, and the surprise Grammy award for a recent Christmas hit. Radio callers share their favorite songs as well from 1999 on WHO in Des Moines.