ACK!!!  As if hearing morose or silly Christmas songs aren't bad enough, I was sent a site that has countdown tickers until Christmas!!  It had what to do each day, until the big day - at which time, I assume, you get to drink eggnog until you're silly and paste mistletoe on your forehead!  But I did like this:
 
And irishpipes, you are sooooo right!  Take a wonderful song, give it to a celebrity, and it's a disaster!  I think the only professional singers whose Christmas songs I like are Twila Paris and B.E. Taylor (both of whom are simply wonderful people - maybe that's the secret!).
Of course, Silver, you are right about the drummer boy.  Drummer boys belong in armies of old, and not in a manger!