M.I.A. signs with Jay-Z’s Roc Nation

Jay-Z’s Roc Nation will now manage electro-pop rapper M.I.A., the company announced Thursday. “The nation just keeps on growing…,” read a tweet from Roc Nation directed to the politically charged Sri Lankan femcee. Roc Nation’s homepage also features a welcome to the performer, whose real name is Maya Arulpragasam. Arulpragasam…