Sia and David Guetta reunite for the fourth time on new track released today, “Flames”. Stream below.

Having already collaborated on such hits as “Titanium” and “She-Wolf,” the dynamic have a long history of making music together. They previously collaborated on the smash hit “Titanium” in 2011. That track, Guetta says, was originally meant for another singer, because Sia was planning to retire as a recording artist and focus exclusively on writing. But Guetta says they reversed course after a game-changing conversation: “While we were doing it, I was like, ‘This song is so amazing. First, I don’t want to give it to anyone. And second, no one is going to sing it better than you. You have to stay on the record.’ ”

“‘Titanium’ is still one of the tracks I am proudest of and Sia is one of my favorite artists to work with,” Guetta said in a press statement. “She’s a great songwriter and has an amazing voice. I’m just super excited that we get to release another track together.”

The dramatic new collaboration features a pulsating rhythm and percussive guitars to support Sia’s soaring vocals that dominate the mix.

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