"Wonderful Christmastime" is number 25 on this list compiled by ASCAP. Here is the Paul part of the article:
Re-entering the Top 25 list after a brief hiatus is Paul McCartney's "Wonderful Christmastime." Written in 1979, the song enjoys significant holiday season popularity both in the U.K. and the U.S. Paul McCartney is a member of the PRS -- the U.K.'s Performing Right Society -- who licenses his music through ASCAP for the U.S.
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http://blackhole.xerces.com/showthread.php?t=9981
