Rhian Sugden in black lingerie with red roses.

Rhian Sugden has officially joined the dark side—of hair, that is. The 38-year-old model debuted her glamorous new brunette long bob on Instagram Tuesday, paired with a sultry lingerie ensemble that left her followers in awe.

In the striking photo, Rhian pouts seductively at the camera while modeling a black lace bra with red rose embroidery, matched with high-waisted briefs from Playful Promises. The daring set highlighted her enviable figure, leaving fans captivated.

Accessorizing her look with a stack of earrings and a chic gold ring, Rhian brought an extra touch of sophistication to the already bold style. Her caption playfully teased her transformation: "Testing the theory that brunettes have more fun! @lovelocks_byll taking me to the dark side 😈 With @playfulpromises kitting me out in some seriously saucy undies ❤️ What do you think? #guesswhosback #pantone #brunette."

With her signature charm and a fresh new look, Rhian proves that brunettes can indeed have plenty of fun—while setting hearts racing in the process.

Rhian Sugden in light green embroidered bra.