If someone just told me about some celebrity I didn't know about all my life. would it be natural to express this in past perfect tense. For instance: Someone tells me about me about Mohammed Ali and that's my first time of ever hearing about him. When he's finished, would it be right to say 'I hadn't heard about him all my life.' in a nutshell, could past perfect tense also express the past of the just past event/just finished event?
could anyone explain this to me elaborately?