My Aunt Mary lead singer Jung Soon Yong, also known as Thomas Cook in his solo ventures, has always been known for his soft rock sound. Smooth and soothing melodies are a given, as well as his mastery of the romantic ballad. Since going solo, Thomas Cook has also experimented outside My Aunt Mary's style, inluding more gentle, acoustic sounds and collaborations with other stars, from K-pop legends to powerhouses of funk and soul.