Oh, that is Kyle, definitely. There were lots of singing with the two of them back then. They did Silent Night one Christmas, and one where they were having fun ice skating. Jack & Jen were there, as well.
Actually, many of our actors can sing, or play musical instruments, and Days used to use them that way. You can see that in the wonderful clip krw put up. Matt Ashford (Jack) sings beautifully, and has toured in musicals. Kevin Spiritis (Craig Wesley) also has a gorgeous voice, has appeared a lot around the St. Louis area. (I used to get e-mails advising me of whatever he was doing.)