They say you gotta start ‘em young. Madonna, 51, has teamed up with her 13-year-old daughter Lourdes Leon and her partners at Iconix Brand Group Inc. to create a fashion line for teens.

Madonna and Lourdes Leon Material Girl launch

Aptly called “Material Girl,” the fashion line will debut exclusively in Macy’s in August. You can browse through clothing, footwear, handbags, and jewelry.

“We look forward to working with Madonna, Lourdes, and the Iconix team,” said Jeff Gennette, Macy’s chief merchandising officer. “Madonna is a fashion icon who can bring a new dimension to our juniors customer.” They even have plans to introduce beauty products and perfume to the line come 2011.

Would you dress your teenage daughters in “Material Girl” products?