Watch footage from the performance below. Extraordinarily, this appearance was the first time Guetta and Sia have ever appeared together to perform the song live since its 2011 release.

Coachella festival attendees got to see the smash collaboration “Without You” live when R&B star Usher joined David Guetta for a surprise performance in the California desert last weekend. And ...

Sia and David Guetta have plenty of collaborations together, but 2011’s “Titanium” is one of the biggest. On Friday (Mar. 28), the pair performed the hit for the first time at the Ultra ...

David Guetta, Afrojack, and Sia appeared onstage together at Miami's Ultra Music Festival to perform their hit "Titanium" live for the first time.