Pop icon Madonna and her 13-year-old daughter Lourdes will soon be debuting a juniors fashion line exclusively for Macy’s called “Material Girl.”

But according to Madonna, it’s her daughter that will be doing most of the designing. “I just stand in the background and go, “That’s cool. That’s not cool,’” Madonna recently told Billboard.com.

Stella McCartney, says Madonna, is to blame (or credit) with instilling in Lourdes (nickname, Lola) the desire to design. “Lola has been bothering me for ages about designing clothes,” Madonna told Billboard.com. “Stella McCartney is a good friend of mine and she got her mind thinking when Lola was a little girl, about 8 years old. She started giving Lola fabrics and inviting her into her showroom and asking her opinion on things, giving her sketch books and stuff like that. Stella always pushed her.”

With an early exposure to fashion design, perhaps it was inevitable that Lola would dip her sketch pencil in the pool, too. “I have a lot of friends who are clothing designers whether it is Gaultier or Dolce and Gabbana,” says Madonna. “[Lola] has been around all of the shoots I have done and all of the campaigns I have done. She is always hanging out backstage. The last two tours I have done, she has been working in the wardrobe department. On this last tour she dressed all of the dancers.”

What can consumers expect to see in the new Material Girl line, set to launch this fall? Jeans, shoes, fingerless gloves, necklaces and other accessories — much of it inspired by Madonna and Lola’s love of dance, reports Billboard.com.