Jessica Simpson's 6-year-old daughter, Birdie Mae, was the spitting image of her famous mom when she dressed up as the pop star for school spirit week. "Today is dress as your favorite artist for spirit week at school and Bird wanted to dress up as meeeeee," the singer, 45, shared via Instagram on Thursday, October 9, alongside photos. In honor of the special occasion, Birdie channeled her inner pint-size diva by rocking a black graphic T-shirt featuring the cover art for her mother's debut album, Sweet Kisses, which topped the charts in 1999.