London, Sep 26: Actress Nicole Richie spent her 35th birthday with sister-in-law Cameron Diaz, Kate Hudson and Jessica Alba at a disco-themed party. The “Simple Life” star celebrated her birthday in Los Angeles, reported Female First.

Sharing a snap of herself and Richie at the party, Hudson wrote, “Happy birthday gorgeous! @nicolerichie #DiscoNight (sic).” (ALSO READ: Nicole Richie fears Justin Bieber will get her sister Sofia pregnant)

Alba also shared a number of pictures from the party, writing, “#aboutlastnight #selfielessons @nicolerichie #disco (sic).”