"Flames" is a song by French DJ and record producer David Guetta and Australian singer-songwriter Sia. The song was released on 22 March 2018 by What a Music, as the third single from Guetta's seventh studio album, 7 (2018). The duo's seventh collaboration, it was written by Sia, Guetta, Christopher Braide, Giorgio Tuinfort and Marcus van Wattum, with production handled by the latter three.
The single was a commercial success, reaching the top 5 on official charts across Europe, including France, Scotland, Switzerland and the Netherlands. It also reached the top 10 in the United Kingdom and Germany among others, was the most-played song on European radio in 2018, and earned Sia a nomination for Best Female Artist at the ARIA Music Awards of 2018. "Flames" became the seventh collaboration between Guetta and Sia, after "Titanium", "She Wolf (Falling to Pieces)", "Wild One Two", "Bang My Head", "The Whisperer" and "Helium".