Gwen and her husband Gavin Rossdale have sons Kingston, four, and 21-month-old Zuma. Kingston celebrated his birthday on May 26, and his parents threw him a lavish bash to celebrate on May 29 at their home in Los Angeles. Us Weekly magazine reports the party set Gwen and Gavin back $15,000, as they were determined to make the day extra special. They invited 100 people to join in the festivities, including David and Victoria Beckham and Kate Beckinsale. Partygoers feasted on a lavish spread including burgers, hot dogs, tacos, quesadillas, french fries and chicken fingers. "In addition to the mandatory birthday cake, sweets included a cotton candy machine and a lemonade stand," the publication reports. There was also plenty of entertainment for Kingston and his young pals, including a bouncy castle, birds, a face painter, people dressed as superheroes and a professional making animals from balloons. Gwen has often spoken on how proud she is to be a mother. She recently said having two boys is such a lot of work she is unsure she will have more kids, and has admitted Kingston was so naughty when he was a toddler she was just hoping "for the best and that he`s not going to turn out to be a freak".