Premise: `` Titanium '' is a song by French DJ and music producer David Guetta , featuring vocals by Australian recording artist Sia . Taken from Guetta 's fifth studio album , Nothing but the Beat , the song was written by Sia , David Guetta , Giorgio Tuinfort and Afrojack .
Hypothesis: Titanium, despite being a David Guetta song, was written entirely by other people.
Label: CONTRADICTION