Listening to Cats: The Musical - Mr. Mistoffelees
Only known Memory for so long as an Elaine Page song and never knew it originated from this musical! The other songs in the musical are similarly great but this is a nice [word here] (those musical things with the tuxedos and dresses, I can't remember the word for it)/can-can music sort of thing!
Aaaaaannnnnd we all say "Oh! Well, I never! Was there ever a cat so clever as magical Mr. Mistoffeleeeeeeeeeessss......."