It turns out they are from Brooklyn.
Their mother put their video on YouTube on Tuesday and already there have been more than six million views.
It's twin talk-that no one can understand but them.
"Who knows what they were talking about," said their mother Abby McEntee.
The Brooklyn twins dazzled viewers today on Good Morning America.
Then they took over the weather center, executive offices, and charmed everyone.
They left the GMA studios like rock stars. So what's next?
"I don't think they're going to come out with a clothing line anytime soon," adds Abby.
But the world can still delight in their internet celebrity.
VIDEO: WATCH YOUTUBE VIDEO HERE
VIDEO: GMA VIDEO