Happy birthday Harlow Winter Kate Richie-Madden!

Nicole Richie and Joel Madden’s eldest daughter is growing up fast – she turns three years old today.

The little birthday girl was spotted out with her proud parents this morning in Hollywood, looking totally adorable, dressed in a pink net ballerina tutu and little sparkly tiara.

Harlow was carried by her rock star dad while her younger brother, Sparrow, dressed in a cute little leather jacket, was carried by his mom.

The family officially celebrated Harlow’s birthday with all of her A-list friends during a party at the Tree House Social Club in Beverly Hills on Saturday.

But, when you are the daughter of Hollywood royalty it seems the party is never really entirely over!

Celebs who came out to celebrate at the weekend included Kourtney Kardashian and son Mason, Gwen Stefani and her son Kingston, Ellen Pompeo and Chris Ivery with their daughter Stella, and Jessica Alba with daughter Honor.