He is actually giving two shows: Alvast een Vrolijke Kerst met Ton Kas and Vrolijke Kerst met Ton Kas. Because Christmas lasts two days, so Merry Christmas too... This is not a themed performance about Christmas, but as a professional grouch, Ton just has to laugh about Merry Christmas. As for the rest, it's just the same corny shit as usual, but with a little more balls.