Kate Hudson, Rani Rose, Ryder and Bingham
The actress posts her first Instagram selfie of her and her three kids on her special day.
Kate Hudson and Goldie Hawn
The two appear at Kate's birthday party at her house.
Cake Time!
Guest Rachel Zoe shared this photo of the birthday girl's birthday cake.
Kate Hudson and Gwyneth Paltrow
The actress arrives at her surprise birthday coffee celebration.
Kate Hudson
Surprise!
Kate Hudson and Danny Fujikawa
The actress and her beau are all smiles at her surprise birthday coffee celebration.
Birthday Girl!
The actress is all smiles in her party hat at her surprise birthday coffee celebration.
Sara Foster and Gwyneth Paltrow
Erin Foster captured this snap of her sister with the Oscar winner at Kate's surprise birthday coffee celebration.
Smile!
The surprise birthday coffee celebration guests take a selfie.
Kate Hudson and Gwyneth Paltrow
The two are all smiles at Kate's surprise birthday coffee celebration.
Group Pic!
The birthday girl appears with her friends and family, including mom Goldie Hawn and Kurt Russell, at her surprise birthday coffee celebration.
Kate Hudson and Sarah Foster
The two pose together at the actress' surprise birthday coffee celebration.