Bradley Cooper will be among the Screen Actors Guild Awards (SAG) presenters.
The star is nominated in the best actor category for his role in Silver Linings Playbook and will now play an even bigger part in the ceremony later this month.
Joining the 38-year-old will be his co-star Jennifer Lawrence, as well as Justin Timberlake, Viola Davis, Sigourney Weaver and Anne Hathaway, who has a best supporting actress nomination for her role in Les Misérables.
Jennifer is up for the best actress gong, while the entire cast of Silver Linings Playbook is in with a chance of being named best cast in a motion picture.
The comedy drama and Les Misérables are two of the hottest films this awards season.
The musical movie is also up for best cast, while male lead Hugh Jackman joins Bradley in the best actor category.
Justin was nominated for a SAG Award in 2011 as part of the cast of The Social Network.
Viola won the 2012 award for best actress and best cast in The Help, while Sigourney has been nominated three times.
The ceremony will be broadcast live on Sunday 27 January from the Shrine Auditorium in Los Angeles.
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