Name the band or artist

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Across
  1. 4. Wombling Merry Christmas
  2. 6. Last Christmas
  3. 11. Santa Baby
  4. 12. I Wish It Could be Christmas Everyday
  5. 14. Little Saint Nick
  6. 15. Santa Claus is Coming to Town
  7. 16. The Season is Upon Us
  8. 17. Do They Know It's Christmas
  9. 18. Hard Candy Christmas
Down
  1. 1. Father Christmas
  2. 2. When A Child Is Born
  3. 3. Christmas Wrapping
  4. 5. Merry Xmas Everybody
  5. 7. Merry Christmas Everyone
  6. 8. Driving Home For Christmas
  7. 9. All I Want For Christmas Is You
  8. 10. Step into Christmas
  9. 13. White Christmas