Three Christmas songs to find. Have fun!

Ben Fabian of Castle Hill High School was first to email me the solution, and so Ben is the JCC December Champion. 

Substitution Cipher

ZMPIRB RMALB, LUPJ RMALB

FPP MZ SFPQ, FPP MZ EYMALB

Book Cipher (Using one of the two on this site)

92 74 70 1 36 4    7 68 57 69 3    39 11 30 82

90 91 68    84 5 56    74 48 62 25 70 78 86 30 77

53 78    71 85 70    74 94 58 68

76 30 5 44    1 3    36 57 11 17 6 70 78 86 58 82

Caesar Cipher

JCTM  VJG  JGTCNF  CPIGNU  UKPI