Teo Halm, Reese Hartwig & Ella Wahlestedt ("Earth to Echo"). Also: Lucy Hale performs.Teo Halm, Reese Hartwig & Ella Wahlestedt ("Earth to Echo"). Also: Lucy Hale performs.Teo Halm, Reese Hartwig & Ella Wahlestedt ("Earth to Echo"). Also: Lucy Hale performs.