That's definitely single crochet over the entire hat. It looks a little different because they changed colors and added stripes to it. But it looks as if it's single crochet through the whole thing. You can put "newsboy crochet hat pattern" in the search box at Youtube. I've seen many patterns there for them. They're tutorials that have you work along with the teacher. You can pause the video at any time if they go too fast for you. You'll be able to see what they're doing easier if you put the video on full screen mode.
Welsh corgis are cool.