Sia is known for her stunt-heavy, often mind-blowing televised performances, and while her Jimmy Kimmel Live! set on Monday night (Mar. 14) was relatively straightforward, that didn't make it any less impressive.

Performing live at the Samsung Galaxy showcase at South By Southwest in Austin, the via-satellite performance of "Bird Set Free" featured some Sia staples: big bow, big wig, badass dancer interpreting her soaring pop. Sia's vocal take here was simply astonishing, though; just listen to her approach the climax of the song with full force and dazzle the crowd.

"Bird Set Free" comes from Sia's latest album, This Is Acting; she featured some of the songs from the full-length on her Carpool Karaoke drive-by. And although the Australian singer-songwriter didn't show her face at SXSW, she did when she stopped by Sesame Street!