Memoirs of an Imperfect Angel is the twelfth studio album by American singer Mariah Carey. It was released on September 25, 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".