Confessions on a Dance Floor is the tenth studio album by American singer and songwriter Madonna. It was released on November 9, 2005, by Warner Bros. Records. A complete departure from her previous studio album American Life (2003), the album includes influences of 1970s disco and 1980s electropop, as well as 2000s club music. Initially, she began working with Mirwais Ahmadzaï for the album but later felt that their collaboration was not going in the direction she desired. Madonna took her collaboration with Stuart Price who was overseeing her documentary I'm Going to Tell You a Secret. The album was mainly recorded at Price's home-studio where Madonna spent most of her time during the recordings.

Musically, the record is structured like a DJ's set. The songs are sequenced and blended so that they are played continuously without any gaps. The title arrived from the fact that the album tracklisting consists of light-hearted and happy songs in the beginning, and progresses to much darker melodies and lyrics describing personal feelings and commitments. Songs on the album sample and reference the music of other dance-oriented artists like ABBA, Donna Summer, Pet Shop Boys, the Bee Gees and Depeche Mode, as well as Madonna's 1980s output.

Madonna promoted the album through several live performances and a promotional tour. She embarked on the Confessions Tour in 2006, which became the highest-grossing tour ever for a female artist at that time. Four singles were released from the album. "Hung Up", the lead single, topped the charts in a total of 41 countries. According to Billboard, it was the most successful dance song of the decade. It was followed by "Sorry", which became Madonna's twelfth number-one single in the United Kingdom. "Get Together" and "Jump" were also released as singles, both becoming top-ten hits in several countries.

The album received widespread acclaim, with critics calling it a return to form for Madonna and ranking it alongside her best albums. Madonna was honored with a Grammy Award for Best Electronic/Dance Album in 2007, as well as International Female Solo Artist at the 2006 BRIT Awards. Commercially, Confessions on a Dance Floor peaked at number one in 40 countries, earning a place in the 2007 Guinness World Records for topping the record charts in the most countries. The album sold between 3.6 to 4 million copies in its first-week worldwide, and remains one of the best-selling albums of the 21st century, with over 10 million copies. Ranked third on "The 99 Greatest Dance Albums of All Time" by Vice magazine, the album is noted as a testament to Madonna's longevity with the ability to continuously reinvent herself in the third decade of her career.