Listen to O Come All Ye Faithful (From "National Lampoons Christmas Vacation") online. O Come All Ye Faithful (From "National Lampoons Christmas Vacation") is an English language song and is sung by Bing Crosby. O Come All Ye Faithful (From "National Lampoons Christmas Vacation"), from the album It's a Wonderful Life - The Christmas Movie Soundtrack, was released in the year 2015. The duration of the song is 3:13. Download English songs online from JioSaavn.