He is quiet and small
He is black
From the ears to the tip of his tail
He can creep through the tiniest crack
He can walk on the narrowest rail
edited to add: John Partridge is the performer in the video above in the role of Rum Tum Tugger in the Broadway musical Cats. In addition to Mr. Mistoffelees, we have our own Tugger visiting the front porch. Surprisingly, they seem to get along.
The character of the Tugger was based loosely on the stage antics of Mick jagger and Elvis Presley. Here's another video of Rum Tum Tugger. If you liked the first, you will really enjoy this one.