Em-Haley Walker, known professionally as Theia, is an alt-pop artist from New Zealand. In 2016 she released her debut major label single, 'Roam' with her accompanying EP Theia[2] released on 30 June 2017. The EP debuted at No. 15 in New Zealand's Official Top 40, and at No. 3 in the NZ Album Chart. Her second EP Not Your Princess was released on 12 April 2019 and in May 2020 Theia released her 99% Angel mixtape.