when was titanium released
Production was also handled by Guetta, Tuinfort and Afrojack. Titanium was initially released for digital download on August 8, 2011, as the first of four promotional singles from the album. It was later released as the album's fourth single in December 2011. The song originally featured the vocals of American recording artist Mary J. Blige, whose version of the song leaked online in July 2011. Titanium is a ballad which draws from the genres of house, pop and urban-dance.