You may have saw a video from a good few years ago where Kevin Spacey, during a public interview, wheeled out his vast array of celebrity impressions.

No joke, as well as being one of the best actors working today, he also does the best Christopher Walken we've heard in some time.

Spacey was on with Jimmy Fallon to play Wheel of Impressions - in which a random celebrity is selected together with a topic of conversation. Simples, yes?

Also, Jimmy Fallon does a pretty amazing Dr. Phil impression, too.