Rebel Heart is the thirteenth studio album by American singer-songwriter Madonna, released by Interscope Records on March 6, 2015. She worked on the album throughout 2014, co-writing and co-producing it with various musicians, including Diplo, Avicii and Kanye West. The album also features guest vocals by boxer Mike Tyson and rappers Nicki Minaj, Nas and Chance the Rapper. Thematically, Rebel Heart represents the singer's romantic and rebellious sides; the ideas grew organically during the writing and recording sessions. Musically, it is a pop record which merges an array of genres such as 1990s house, trap, and reggae, while using acoustic guitars and a gospel choir. Some of the songs are autobiographical in nature, while others talk about love and Madonna's career. Unlike her previous endeavors, working with many collaborators posed problems for Madonna in keeping a cohesive sound and creative direction for the album. The record had been set for a March 2015 release, with the first single to be released on Valentine's Day. However, after a flurry of unexpected album content leaks, Madonna released Rebel Heart for pre-order on the iTunes Store on December 20, 2014, with six songs made available immediately for download. A police investigation led to an Israeli man being arrested and charged with hacking into Madonna's computer and leaking the songs. The album's artwork became popular on social media, leading to numerous memes being created. To promote Rebel Heart, Madonna gave several performances on television and embarked on the Rebel Heart Tour, which visited North America, Europe, Asia, and Oceania, from September 2015 to March 2016. "Living for Love", "Ghosttown", "Bitch I'm Madonna", and "Hold Tight" were released as singles from the album. Rebel Heart received predominantly positive reviews from music critics; multiple reviewers called it Madonna's best effort in a decade. It debuted and peaked at number two on the US Billboard 200 and the UK Albums Chart, while reaching number one in major music markets such as Australia, Canada, Germany, Italy, Netherlands, Spain, and Switzerland. Rebel Heart was certified gold or platinum in seven countries. Source: Wikipedia (en)