Rumor has it that this August Madonna will release a junior's line of clothing called Material Girl, ranging in price from $12 to $40. It's also said to be inspired by her 13-year-old daughter, Lourdes. The CFO of Macy's says, "Lourdes has an incredible sense of style and her point of view on fashion has definitely been an inspiration for the line." This isn't her first foray into merchandising for the younger set; Madonna authored five children's books in 2003 and 2004. The first one, "The English Roses," was inspired by Lourdes, as well. So keep your eyes on this stylish teen muse, people. She's only 13 now, but give her a few years and i'm sure we'll all want to be her.