Question: Rachael Sage is an American singer-songwriter and producer, visual artist, and founded her own record label at the dawn of her musical career, Sage has shared stages with which American musical duo from New York made up of singers and songwriters Ian Axel and Chad King and signed to Epic Records? 
Sentence (from "A Great Big World"): A Great Big World is an American musical duo from New York made up of singers and songwriters Ian Axel and Chad King and signed to Epic Records.
Relevant evidence: Yes