The "Chandelier" singer stopped by "Chelsea Lately" earlier this week, where she dished about her writing process and put on one amazing performance with Chuy Bravo.
Check out the video above to see how the blonde beauty comes up with her hit songs!
Sia his written tons of pop tunes -- including Rihanna's "Diamonds," Beyonce's "Pretty Hurts," and Britney Spear's "Perfume" -- and she says she comes up with the melody before the lyrics.
The Australian native -- who doesn't face the crowd when she performs -- also sang an softer version of her hit single "Chandelier," enlisting Chelsea Handler's assistant Chuy Bravo for one hilarious performance.
Check out the video below to see Chuy swing from a chandelier!