WTA Superfans is saying this is JJ's USO dress.
I'm totally hoping for an electrical storm just to see that thing under static duress.
I mean...she can't right? SHE CAN'T!
Thanks to @shay_jr for tweeting me the pic.
UPDATED: While we all know she totally can and she would, BoxiFrixi has pointed out that thankfully, that's not her USO dress. That pic is from a photoshoot from a while ago. PHEW!