This is just a short description of who David Guetta is. David Guetta is a French House DJ and producer. David Guetta produces and records a variety of albums that feature some very popular artists to sing his music such as Usher, Sia, Black Eyed Peas, and Chris Willis. In the song "Titanium", as with most of his other songs, David Guetta does not sing in the song but produces the music and puts his name on it. He asked Australian pop singer Sia Furler to sing the song that he produced and she wrote. David Guetta is known as one of the No.1 underground House DJ there is. He is not like most DJ's who often would not produce radio friendly hip-hop-electronic music.
Sia Kate Isobelle Furler is an Australian pop singer and was the vocalist who was featured in David Guetta's song "Titanium" which she wrote. She displayed an amazing range of vocal ability in the song "Titanium" as she was able to bring a dark but emotional twist on this hip hop electronic song. Sia had a tough point in her career when she went from the height of her career to the bare bottom. "Titanium" was a song that was written by Sia that she gave to David Guetta to produce, as the song was meant for someone else at first, David Guetta decided that Sia would be the best choice to sing the song. The song even has a leaked version of Mary J Blige singing it!