The album revealed a more personal side of the singer, illustrated in its declarative theme of emancipation from her previous marriage, and from her personal and professional setbacks. It was meant to be a continuation, or a second part of her tenth studio album, "The Emancipation of Mimi" (2005). Although it shared similar vocal production as well as an inclination to her signature pop and R&B ballads, the album also encompassed a variety of dance-oriented and uptempo styles. Carey collaborated with a number of artists on the album, including T-Pain, Damian Marley and Young Jeezy. Though considered by critics very similar to the formula its predecessor had been built on, "E=MC²" included other genres she had never explored, such as reggae, and her continued recording of gospel-influenced hymns.