Memoirs of an Imperfect Angel is the twelfth studio album by American singer-songwriter Mariah Carey. It was released on September 29, 2009, by Island Records. After promotion for her previous album, E=MC² (2008) ended, Carey began to work on a new album, producing songs with Terius "The-Dream" Nash and Christopher "Tricky" Stewart, and revealed the album's title through Twitter. Carey said that Memoirs of an Imperfect Angel would have "big ballads", and that "each song is its own snapshot of a moment in a story".

Mariah Carey is an American singer, songwriter, record producer, and actress. An influential figure in popular music, she is known for her five-octave vocal range, melismatic singing style, and signature use of the whistle register. Carey is also credited with influencing vocal styles, merging hip-hop with pop through her collaborations, popularizing remixes, and helping break down racial barriers for multiracial Americans in popular culture. Referred to as the "Songbird Supreme" by Guinness World Records, she was ranked as the fifth greatest singer of all time by Rolling Stone in 2023, and has been dubbed the "Queen of Christmas" for the enduring popularity of her Christmas music, particularly the 1994 song "All I Want for Christmas Is You", which is the best-selling holiday song by a female artist.