Why? Because their official state rock song (how many states are even cool enough to have one of those?) is "Do You Realize?" by the Flaming Lips, one of my all-time favorite bands! If you don't feel the coolness yet, read more about the epic legislative battle and internets vote that lead to this triumphant outcome.
Or you could just listen to some of the song and get the idea of what a Flaming Lips show is like below!