Christina Aguilera Celebrates Son Max's First Birthday!

Christina Aguilera and husband Jordan Bratman threw a party Saturday afternoon to celebrate son Max’s first birthday.

People reports the couple invited about 40 guests to their intimate backyard kiddie bash, whose theme was inspired by the children’s book Where the Wild Things Are. Nicole Richie and boyfriend Joel Madden were there with their daughter Harlow, who turned one on Jan 11, just one day before Max’s birthday.

People describes the party:

With surrounding trees decorated in festive blue, green and pink balloons, party guests nibbled on kid-friendly food, including mini peanut butter-and-jelly sandwiches, catered by Los Angeles-based caterers Along Came Mary. And as a special treat, a source says the party was attended by costumed mythical characters from the book.