Feb 19, 2009, 7:18 GMT
Los Angeles - Oscar organizers have started leaking information about the stars who are to perform at Sunday night's awards show.
Sid Ganis, President of the Academy of Motion Picture Arts and Sciences, speaks before opening 'Meet the Oscars' display in Chicago, Illinois, USA 13 February 2009. EPA/KAMIL KRZACZYNSKI
E! Online reported that host Hugh Jackman would be joined on stage by Beyonce, High School Musical stars and real-life couple Zac Efron and Vanessa Hudgens, and Mamma Mia!'s Amanda Seyfried.
Twilight star Robert Pattinson is also on the presenters list as organizers attempt to attract younger viewers who have deserted the show in recent years.
The Oscars are to take place Sunday night in Los Angeles with The Curious Case of Benjamin Button and Slumdog Millionaire leading the nominations.
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