The music industry is filled with talented artists who bring their unique sounds and stories to the table. Among these are Sia, Siberia, and Sybil, each contributing their own chapter to the diverse world of music. Sia: The Elusive Songstress Sia Kate Isobelle Furler, known simply as Sia, is an Australian singer, songwriter, and record producer. Born on December 18, 1975, in Adelaide, Australia, Sia has made a name for herself with her powerful voice and eclectic style. Her career began as a songwriter for other artists, contributing hits like "Titanium" for David Guetta and "Diamonds" for Rihanna.