Sarunrat Visutthithada, nicknamed Dear but is mostly known by the stage name Lydia, is a Thai R&B artist, actress, model. She comes from a Thai-Chinese family and is fluent in English, Thai, and Spanish. Since she was just 5, she had the dream to become a pop star and she underwent intense vocal training. While attending high school, she sang in the acapella group UNDEFINED and won the ISB Idol competition.