There is more than one artist known as Leah. 1. LEAH is a celtic-metal songwriter and artist from British Columbia, Canada. LEAH made waves across the globe when she released her debut album Of Earth & Angels through her independent record label Ex Cathedra Records, despite being virtually unknown at the time. Through the internet and word of mouth, the world began to hear about LEAH and her unique style, bringing together her influences of symphonic metal, celtic and new age, and even soul and world music.