In case you are wondering, the ASCAP stands for The American Society of Composers, Authors and Publishers.
Here are the Top Ten.
1. The Christmas Song (Chestnuts Roasting on an Open Fire) – Mel TormÃ©, Robert Wells
2. Santa Claus Is Coming To Town – Fred Coots, Haven Gillespie
3. Have Yourself A Merry Little Christmas – Ralph Blane, Hugh Martin
4. Winter Wonderland – Felix Bernard, Richard B. Smith
5. White Christmas – Irving Berlin
6. Let It Snow! Let It Snow! Let It Snow! – Sammy Cahn, Jule Styne
7. Rudolph The Red Nosed Reindeer – Johnny Marks
8. Jingle Bell Rock – Joseph Carleton Beal, James Ross Boothe
9. I’ll Be Home For Christmas – Walter Kent, Kim Gannon, Buck Ram
10. Little Drummer Boy – Katherine K. Davis, Henry V. Onorati, Harry Simeone
View the rest of the list here.