Kingston Rossdale’s 4th Birthday Bash Cost $15,000!

You only turn 4 once and in honor of Kingston Rossdale‘s big day, his famous parents spared no expense!

A source tells Us that Gwen Stefani and husband Gavin Rossdale spent $15,000 on their firstborn son’s May 29 birthday bash at their Los Angeles-area home.

The 100 party guests – including fellow celeb parents Kate Beckinsale and David and Victoria Beckham – nibbled on burgers, hot dogs, tacos, quesadillas, french fries and chicken fingers. In addition to Kingston’s birthday cake, sweets included a cotton candy machine and a lemonade stand.

What kind of entertainment was available for the little people? A bouncy castle, three birds, a face painter, a balloon artist, and roaming super hero characters.

To primp and prep for the elaborate birthday bash, Gwen took Kingston for a mother-son mani-pedi at the salon.

Kingston, whose actual birthday was on May 26, is big brother to Zuma, 21 months.

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