Madonna talks with 20/20 about motherhood, mysticism, her latest children's book and her new concert tour.ABCNEWS.com Mother of Reinvention Madonna’s Latest Makeover — Motherhood and Mysticism ABCNEWS.com June 16, 2004— Madonna, the master of self-invention, has come a long way since her "Material Girl" days. While she has no regrets about her moves on her climb to pop diva status, she tells ABC News' 20/20, "I brought a lot of chaos to people's lives, because of my selfish behavior." Watch Cynthia McFadden's exclusive interview with Madonna on 20/20 Friday night at 10 p.m. In her latest incarnation, the...