 E = MC ² is the eleventh studio album by American singer and songwriter Mariah Carey . It was released in the United States on April 15 , 2008 by Island Records . The singer began recording the album in 2007 in Anguilla , after writing and composing most of its material during and after her 2006 Adventures of Mimi Tour . Carey worked with several notable songwriters and producers during the course of the project , including Jermaine Dupri , Bryan @-@ Michael Cox , Stargate , The @-@ Dream , Tricky Stewart , Scott Storch and Danja . 
