We went and done some research. It does, in fact, appear that Wolverine just woke up like this.
This video shows comic-book / 90's cartoon Wolverine from X-Men giving a surprisingly faithful recreation of Beyonce's All The Single Ladies on a street somewhere.
We also like the fact that Wolveryonce - that's what we're calling him - didn't once need to be prompted. It's like he had the dance down from memory.
Amazing stuff. He needs to do it again and have Cyclops and Sabretooth has his back-up dancers.