Sia is an Australian singer-songwriter and record producer known for her work in pop, electropop, and indie pop music. Born in Adelaide, she began her career in the mid-1990s and gained recognition both as a solo artist and as a songwriter for other performers. Her music often features strong, emotive vocals, layered production, and anthemic, hook-driven songwriting; in recent years she has been noted for incorporating electronic elements and dramatic crescendos. Sia is also recognized for a distinctive public image that emphasizes anonymity, frequently using wigs and face-covering performance styles to shift focus onto the music and songwriting rather than her personal life.