Gary Williams at Crazy Coqs, W1

Raised in a Jehovah’s Witness household where Christmas was frowned upon, Gary Williams is something of a latecomer to the concept of festive cheer. The Sinatra-esque crooner is certainly making up for lost time in this ebullient show. Be warned: if you are allergic to Yuletide singalongs, get ready to wander out of your comfort zone in the second half of the evening.

Then again he conducts the proceedings with such gentle, unassuming humour that even the most atheistic of souls — I had one sitting next to me, as a matter of fact — will be willing to join in. It was surely a little too early to be singing Auld Lang Syne, but Williams and his adroit pianist Matt Regan also smuggle