The album had been recorded in London, Stockholm and Ibiza and features the first new Kylie material since the greatest hits compilation in 2004, reports news.com.au.
X includes collaborations with the likes of Richard "Biff" Stannard, The Freemasons, Calvin Harris, Greg Kurstin, Eg White, Guy Chambers and Cathy Dennis.
Minogue's first single from the album, 2 Hearts, entered the Australian singles chart this week at number one.
