This past March, Mariah Carey filled in for a sick Janet Jackson as the guest performer on Saturday Night Live. In addition to her 18th #1 Billboard single, Touch My Body, the 18-year veteran also premiered her new song, Migrate, set to be track #1 off her 11th studio album E=MC² . With a little over a week before the album’s release, the album version has hit the booth and (if you haven’t heard) features Mimi at her favorite evening hot spot (see It’s Like that). Showcasing her uncanny ability to reach every octave ever created, Mariah is assisted by the most in-demand collaborator of the past two years (T-Pain), as well as the biggest producer’s protégé (Danja). E=MC² drops worldwide on April 15.