"Titanium" is a song by French DJ and producer David Guetta featuring Australian singer Sia. It was released in 2011 as a single from Guetta's fifth studio album, "Nothing but the Beat". The song is an upbeat and energetic dance-pop track with powerful vocals from Sia, who sings about being strong and indestructible like the metal titanium. The song was a commercial success, reaching the top ten in over 20 countries and becoming one of Guetta's most popular and recognizable tracks.