"Being on Oscar's red carpet is unlike any other experience," Academy of Motion Picture Arts and Sciences President Tom Sherak said in a statement. "Robert is the perfect person to welcome our guests and ease them into a night of spectacular celebration."
This will be Osborne's fifth stint as a host on the red carpet for the Academy.
Sunday's gala will honor the best of film for 2009. It is to be held at the Kodak Theatre at Hollywood & Highland Center.