"Titanium" is a song by French DJ and record producer David Guetta, featuring vocals by Australian singer and songwriter Sia. Taken from Guetta's fifth studio album, Nothing but the Beat, the song was written by Sia, David Guetta, Giorgio Tuinfort and Afrojack. Production was also handled by Guetta, Tuinfort and Afrojack. "Titanium" was initially released for digital download on 8 August 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 pop song which draws from the genres of house and urban-dance. The song's lyrics are about inner strength. Critics were positive towards the song and noted it as one of the standout tracks from Nothing but the Beat. Sia's vocals received comparisons to those of Fergie and the song was also musically compared to Coldplay's work. "Titanium" attained top 10 positions in several major music markets, including Australia, Austria, Canada, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, The Netherlands, New Zealand, Norway, Spain, Sweden, Switzerland and the United States. In the United Kingdom, it peaked at number one, becoming Guetta's fifth number-one single on the chart and Sia's first. The song's accompanying music video premiered on 21 December 2011 but does not feature appearances by Guetta or Sia, instead it focuses on a young boy, played by actor Ryan Lee, with supernatural powers. The video has received over 1 billion views on YouTube as of 26 January 2019. On 12 August 2012, the music video was reused for a Spanish language version of the song. Background "Titanium" was written by Sia, David Guetta, Giorgio Tuinfort and Afrojack. Production was also handled by Guetta, Tuinfort and Afrojack. After discovering Sia's music online, Guetta picked her to appear on his fifth studio album, Nothing but the Beat. Guetta told an insider from Los Angeles, "I was totally amazed by Sia ... This has made me more curious to study her music more because I was really impressed. I have the biggest people on the album and she has a different profile, more like an indie kind of artist and it makes her song even more special, it makes it stand out I think." The song originally featured vocals from American recording artist