Along with best picture-nominated movie "The Help," Stone has appeared in "Crazy, Stupid, Love," "Friends with Benefits," "Easy A" and "Superbad."
Stone joins the list of previously announced Oscar presenters: Penelope Cruz, Angelina Jolie, Cameron Diaz, Halle Berry, Tom Cruise, Tom Hanks, Jennifer Lopez and the cast of "Bridesmaids," including actresses Rose Byrne, Ellie Kemper, Melissa McCarthy, Wendi McLendon-Covey, Maya Rudolph and Kristen Wiig.
The 2012 Academy Awards ceremony takes place on Feb. 26 at the Kodak Theatre in Los Angeles and will air live on ABC7.
The event will be hosted by actor Billy Crystal in what will mark his ninth such stint.
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