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OTRC: Bradley Cooper and Chris Rock to present at the 84th Academy Awards

Bradley Cooper appears in a scene from 'Limitless.' / Chris Rock in a promotional still for the 2007 film 'Bee Movie.' (Rogue Pictures / DreamWorks Animation)

Bradley Cooper and Chris Rock were added to the list of presenters at the 84th Academy Awards, it was announced on February 15.

Rock previously served as host for the 77th Academy Awards in 2005. The comedian recently starred in the Tony nominated play "Mother [expletive] with the Hat." The former "Saturday Night Live" alum has also starred in films like "Grown Ups," "Lethal Weapon 4," "New Jack City," and "Death at a Funeral."

Rock has also lent his voice to animated features like "Bee Movie" and the "Madagascar" franchise, which will release its third movie on June 8, 2012.

Cooper, who is likely best known for his role in "The Hangover" films, has also starred in "Limitless," "He's Just Not That Into You," and "Wedding Crashers."

He will next appear in "The Words" with Zoe Saldana and Olivia Wilde and "The Place Beyond the Pines" with Ryan Gosling. Both films are due out this year.

Rock and Cooper join previously announced presenters like to Emma Stone, Tom Hanks, Angelina Jolie, Tom Cruise and Jennifer Lopez.

Check out Oscar.com and make your picks on who you think will win at this year's Academy Awards. Also check out Entertainment Weekly writer Dave Karger's Oscar Poll Insight below, where he gives tips to win your Oscar pool.

See moments in Oscar history on the interactive timeline available on the official Oscar.com website.

Oscar.com also hosts the official Oscar blog, which will feature red carpet fashion trends and tips from chef and lifestyle experts for hosting the best Oscar party.

Leading up to the ceremony, "On The Red Carpet" co-host Rachel Smith will be doing interviews with hair and fashion stylists and makeup artists for the "Best Dressed" video series featured on Oscar.com.

The site also has a social media page, Oscar Buzz, which tracks comments from fans using #Oscars and #OscarBuzz.

Billy Crystal is returning to host the 84th annual Academy Awards. The ceremony will air live on Sunday, February 26, 2012 on ABC, OnTheRedCarpet.com's parent company.

OnTheRedCarpet.com will have complete coverage of the Oscar season, including an exclusive interactive live stream show LIVE from the red carpet. Follow @OnTheRedCarpet on Twitter and "Like" On The Red Carpet on Facebook, and download our FREE entertainment news app for the iPhone and iPad

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