Margaret "Maggie" Eckford ,better known by her stage name Ruelle, is an American electronic pop singer and songwriter. Her music is widely used on many television series, movies and trailer and she is the singer of the opening theme songs of Shadowhunters (This Is the Hunt) and The Shannara Chronicles (Until We Go Down). In 2019 Ruelle was named “Top Synced Artist of 2018” by Billboard Magazine.