By Amanda

LifeBuzz Staff

Sia Joins James Corden For The Most Revealing Carpool Karaoke Yet.

James Corden regularly invites artists into his car for a little bit of Carpool Karaoke. So far, he's played driver to stars like Justin Bieber, Adele, and Coldplay's Christ Martin. However, his most recent carpool buddy is also the most mysterious: It's singer-songwriter Sia, and no, she doesn't even show her facew.

Rolling around Los Angeles, Corden and Sia sing some of her biggest songs, including "Chandelier," "Elastic Heart," and "Alive." They also sang Rihanna's hit song "Diamonds," which Sia actually wrote. Sia's voice is incredible (and her look is pretty rad, too), making this one of our favorite carpool karaoke sessions yet. See the video below.

Source: The Late Late Show with James Corden