Memoirs of An Imperfect Angel font here refers to the font used on the album cover of the same name by the American singer Mariah Carey released in 2009.
The font for the album title resembles P22 Cezanne Regular, a font based on the handwriting of the French artist Paul Cezanne. And the font for the singer name is very similar to Friz Quadrata designed by Swiss designer Ernst Friz in 1978. Both are available as commercial fonts and you can purchase them here and here respectively.
Download Memoirs of An Imperfect Angel Font
We are currently unable to find a free alternative or a font similar to the commercial font identified above, and you will need to follow the relevant links above and purchase the font.