Britney Spears threw a joint birthday party for her sons. 

Britney Spears threw a lavish star-studded birthday party for her two sons on Saturday. The singer’s eldest son Sean Preston turned three on Sunday and younger son Jayden James turned two on Friday.  Britney threw a joint part for the pair at her friend Adrienne Maloof-Nassif’s house in Beverly Park, Los Angeles.

Guests included Gwen Stefani, with her two-year-old son Kingston, and Jenny McCarthy with her son Evan.

Spears’ family also joined in the celebrations – sister Jamie Lynn arrived with her newborn daughter Maddie Briann, as well as dad Jamie and mother Lynne.

Britney Spears celebrates her sons’ birthday with a lavish party.

Britney treated her sons to custom-designed mini motorized cars complete with personalized licence plates and a cake in the shape of a yellow truck. Preston and Jayden drove around the party in mini motorized cars, which were customized Ed Hardy by Christian Audigier. The cars featured tattoo-inspired decals, Ed Hardy air fresheners and personalized license plates.

A source said, “The boys received tons of birthday gifts. Britney and her family really made the party special for the boys.”