Article continues below advertisementJack Nicholson is giving fans a rare peek into his private world.The Hollywood legend quietly marked his 89th birthday on Wednesday, April 22, with an intimate celebration at home. The glimpse came courtesy of his daughter, Lorraine Nicholson, who shared a candid snap on her Instagram Story.Article continues below advertisementSource: @lnicholson/InstagramJack Nicholson celebrated his 89th birthday with a rare and intimate moment shared by his daughter Lorraine.