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.

Miami's Ultra Music Festival witnessed pop music history Friday night as David Guetta, Afrojack, and Sia appeared onstage to perform their 2011 hit "Titanium" live together for the first time.

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 ...