LOS ANGELES (AGENCIES) - Emma Stone has been added to the list of presenters at the 84th Academy Awards. Producers Brian Grazer and Don Mischer announced the news today. Stone, who will be presenting at the Oscars for the first time, joins previously announced stars Tom Hanks, Tom Cruise, Cameron Diaz and Halle Berry. Earlier this week, Angelina Jolie was also announced as a presenter.