Sia Sings Carpool Karaoke with James Corden [VIDEO]

Did you know that she's double-jointed and can hold a dozen eggs in her hands?

Apparently, James Corden researched every weird quirk that Sia has, just so he could make conversation in the car. AJ's a huge Sia fan and she loved this video! James Corden is quickly starting to become my favorite late-night host, even though I'm not up late enough to see his show....