I've had this great idea for the picture round of a pub quiz, but sadly I don't run a pub quiz, so I'm going to inflict it on you instead.
Here are pictures of six very, very famous faces. I mean, really amongst the most instantly recognizable people in history. But I you bet you can't identify more than, say, two of them.
Answers on Wednesday afternoon...
...but before then also, mostly, in the comments box.