It is correct that in speech the final /t/ consonant is not pronounced in the word "silent" before a word like "night". So Silent Night becomes Silend Night. Clever. And since the old faithfuls have come forward to sing, O Come All Ye Faithful, the carol has been changed to O'come Ye Old Faithful. Which is appropriate.
But typographical errors on record sleeves are common with recording companies managed by Asians, especially when song titles are in English. This one is no exception.
But ours is a music blog and to be fair, the band plays well and is comparable to other groups in similar genre. In fact, The Silverstones (image) are great!
You can listen to them on You Tube and the boys are a picture of youth and vitality. They look resplendent in their brown suits don't they? Comment?