Elle King & Sia Take the Stage For Samsung's Galaxy Life Fest at SXSW

Elle King sings her heart out during her performance at Samsung’s Galaxy Life Fest during SXSW on Sunday (March 13) in Austin, Texas.

The 26-year-old “Ex’s and Oh’s” singer was joined by 40-year-old songstress Sia for the show on the last night of the three day music event.

Elle wore a black flapper-inspired dress for her set.

Sia wore a trademark giant bow was joined on stage by three dancers who performed through her set of songs including “Diamonds,” “Elastic Heart” and “Alive.”

10+ pictures inside of Sia and Elle King performing at Samsung’s Galaxy Life Fest at SXSW…