"Titanium" is a song recorded by French DJ-music producer David Guetta, featuring vocals by Australian recording artist Sia. It was taken and released as Guetta’s fourth single from “Nothing but the Beat”. "Titanium" is a near- ballad which draws from the genres of pop, house and urban-dance. The song's lyrics are about inner strength. Sia's vocals on "Titanium" received comparisons to those by Fergie and Coldplay.
"Titanium" has lyrics about inner strength, such as: "I'm bulletproof, nothing' to lose / Fire away, fire away / Ricochet, you take your aim / Fire away, fire away / You shoot me down, but I won't fall / I am titanium."