K-pop phenomenon Kim Na Young won over fans when she appeared on TV talent show Superstar K, which gave her the exposure needed to launch a singing career. Her debut single "What If It Was Going" went viral in 2015, thanks to its power ballad clout. Since then, she’s duetted with Mad Clown on the Descendants of the Sun soundtrack with "Once Again", his hip-hop bringing a rougher edge to her soft sound. "Sometimes" sees her deliver a heart-wrenching breakup song, while "Being an Adult" is Kim Na Young in full-on mellow mode.