If you meant JOSNLYETW then it is Jolly Old Saint Nicholas lean your ear this way.
"Jolly Old Saint Nicholas" (Lean Your Ear This Way).
I.s.t.s.c.s.i
What Child is This
Great Christmas Has a Big Santa
I heard the bells on Christmas Day
Children Go Where I Send Thee
The Christmas song that has the first line initials of aftrog is "Angels From the Realms of Glory". The first line of the song is the same as the name of the song. It is a Christmas Carol written by Scottish poet James Montgomery.
The song is "Carol of the Bells" and the line is "Hark How The Bells Sweet Silver Bells".
Christ ran backwards all over france
"Adeste fideles" (O, Come All Ye Faithful).
"Christmas Is Coming" begins "Christmas is coming, the goose is getting fat". You seem to have an extra 'g' in your clue.