The signer, along with her 14-year-old daughter Lourdes Leon Ciccone, walked the pink carpet to celebrate the launch of the line, Material Girl.
She designed the clothing with her daughter.
"Working with my mom is definitely fun," said the 14-year-old. "It's fun because she has such a great style and I like to look up to her style. I look up to what she's done, but there are also some points we clash on in our decision making. That's when I say, 'It's time to do your homework.'"
The two do agree that the collection is designed for girls who are strong-willed and independent. Material Girl includes clothing, shoes and accessories.