Question: The Very Best of Johnny Mathis had a cover of a Christmas song that had what basic melody?
Sentence (from "The Complete Christmas Collection 1958–2010"): It also compiles all of Mathis's holiday songs that were only released as singles, as well as thematically-appropriate tracks from his non-holiday albums: "When a Child Is Born" from "I Only Have Eyes for You", the holiday version of "What a Wonderful World" from "Let It Be Me", and his two recordings of "Ave Maria" from "Good Night, Dear Lord", which bookend the set.
Relevant evidence: No