This is about a month old, so apologies if you've already seen it, but here's the most recent trailer for the upcoming Persona 4 anime series. The song, Sky's the Limit, is the show's theme, however this probably isn't the actual opening. It's pretty philosophical ("Even without doughs, our thoughts can be dope"), but it's got a bouncy beat too so don't dwell on it too long.
The show premieres this October in Japan, and there's no word whether anyone will be officially simulcasting the show in the US or other territories. Aniplex USA has Blue Exorcist and a couple other current shows up on Hulu and Crunchyroll right now, as well as some other, older shows in their complete runs. Perhaps if they think there will be an audience they'll bring it here themselves. On the other hand, NIS America, who licensed the last Persona series, Trinity Soul, took a couple years to bring the show to the US officially. That one's still only available in pair of relatively expensive DVD sets, or via premium streaming at Anime News Network, and it appears the streams may be expiring soon anyway. Let's hope that someone in charge over there sees the value of making this one a little bit easier to get legally.