Jessica Simpson showed off a darker hair transformation in an Instagram post on July 11, as she continued to mark celebrations for her 45th birthday. The actress and singer, who wore a sexy, see-through dress,

Adding to the glamour, the mom of three completed her birthday look with a long black coat, statement jewelry, oversized silver heels, and a sleek black handbag. In the caption, Simpson marked the milestone with a playful nod, writing, "Fancy dive into 45 💫✨💫."

Jessica Simpson stepped out on her birthday with a brand new look. Simpson, who turned 45 on July 10, shared several photos from her celebration at Chateau Marmont on Instagram July 11.