Sia (born 18 December 1975) is an Australian singer, songwriter, and director known for her powerhouse vocals, avant-garde artistry, and enigmatic persona. After years of writing chart-topping hits for artists like Rihanna and Beyoncé, she rose to global fame with her own anthems—Chandelier, Elastic Heart, and Cheap Thrills—combining emotional intensity with explosive pop production. Sia’s signature visual style, often hiding her face behind bold wigs or headpieces, has become a symbol of artistic control and vulnerability in an image-obsessed industry.

Her personal style is theatrical, sculptural, and deeply intentional—favouring exaggerated silhouettes, monochrome palettes, and conceptual couture. When it comes to eyewear, Sia gravitates toward oversized, architectural frames that enhance her bold aesthetic while adding a layer of mystique. Think dramatic cat-eyes, futuristic shields, or oversized round lenses—often in black or white to match her iconic wigs. Labels like Givenchy, Saint Laurent, or custom avant-garde designers align perfectly with her image. Whether on stage or directing behind the scenes, Sia’s sunglasses are part armour, part performance—always enigmatic, always unforgettable.