Dakota Johnson shares the origin of her name with Dave and surprises him with an unexpected question about... well, take a look!

As I watched this I found out a few things I didn't know about Dakota Johnson. Of course, I didn't know the origin of her name but I had NO idea her parents are Don Johnson and Melanie Griffith.

My views of the 'Fifty Shades' star have officially changed now that I know who her parents are. I can now see how she looks like her parents and it's weird. I thought she was just another actress. It was pretty funny though how she asked Dave if he was her dad. I think not knowing her dad was Don Johnson made that funnier.

I don't really watch much of Letterman these days, mainly because I'm more of a Jimmy Fallon guy myself. But if you want to see more of this interview as they discuss her new movie 'Fifty Shades of Grey', I've got you covered. Here is the rest of their interview: