The trousers were very very wrong, but the more I think about it, the more I actually really quite enjoyed Cliff's performance. I'm speaking as someone who has never ever liked Cliff Richard. I loathe his saccharine Christmas cheese, and his embarassing attempts at looking sexy... and yet, and yet... he picked a song that fitted perfectly with the style of the show, he wasn't plugging a new single, he clearly enjoyed the whole thing, he joined in with the Chicken Walks at the end of the jive...
Much better that Westlife miming along to their latest twaddle, or a girlband who have nothing to do with dancing.
I was impressed.