Here's a somewhat new one, Gravity Falls. Yes, I know it is a cartoon, but it's still an awesome theme song. My wife stumbled across the show online a few weeks ago and binge watched the whole series. I haven't seen all of them yet, but I did enjoy the ones I saw with her. It's what you would get if you crossed Monster Hunter International with a Disney cartoon. It's about a couple of kids that spend the summer with their eccentric great uncle in a very weird town in Oregon. Honestly, I'm not sure how they convinced Disney to allow some of the stuff on the show. Especially the parts with the zombie uprising, or the series finale where the inter-dimensional chaos monsters wreak havoc upon the town.