Madonna‘s 14-year-old daughter Lourdes Leon is growing up!

The teenage fashion designer and her mom launched their “Material Girl” fashion line last year, and with the help of spokesmodel Kelly Osbourne, they celebrated the label’s 1st birthday last night, cake and all, at Macy’s Herald Square in New York City.

Unfortunately, Madonna couldn’t make it to the party, but it looks like Kelly and Lourdes has a blast anyway.

Check out the photos below:

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