Cher is 73--as she'll freely tell you--and she has a few grudges. Here's what I learned from her intermittently puzzling concert, at Barclays, Thursday night: *In a long, rambling, actually disconcerting monologue, Cher recalled being forty. Jack Nicholson and a director had met with her. Then the director called Cher and said: "Jack and I think you are too old and unsexy to be in THE WITCHES OF EASTWICK." Cher was devastated. *The part of the story that seemed to have a "parable" aura: After crying for a long while, Cher noticed how attractive and compelling her own tears were. She knew she could make creative use of these tears. And I think--though Cher spelled out very little on Thursday night--she was offering this WITCHES OF EASTWICK story as an example of how she rises above adversity. How she makes flowers from manure. But we didn't find out what changed with EASTWICK--how Cher ended up in the movie after all that pain. Instead, Cher made an...