Listen to Titanium: Lower Key of C (Originally Performed by David Guetta & Sia)[Piano Karaoke Version] online. Titanium: Lower Key of C (Originally Performed by David Guetta & Sia)[Piano Karaoke Version] is an English language song and is sung by Sing2Piano. Titanium: Lower Key of C (Originally Performed by David Guetta & Sia)[Piano Karaoke Version], from the album Titanium: Lower Key of C (Originally Performed by David Guetta & Sia)[Piano Karaoke Version], was released in the year 2012. The duration of the song is 3:40. Download English songs online from JioSaavn.