Joel Madden celebrated Nicole Richie's birthday with a sweet message on Instagram.
The Good Charlotte rocker gushed about his wife of nearly six years on the social media platform, calling her his "best friend" and a great mother to their two children, Harlow and Sparrow.
"Best Mom, Best Friend, Best Wife. Happy Birthday Nicole, You keep us all laughing," he captioned a candid pic of the couple.
Nicole, who is known for her sense of humor, shared a funny video of her own to celebrate her big day.
Happy belated birthday, Nicole!