Singer Soyou (소유/강지현) who is best known as a former member of Sistar (씨스타) guest stars in "I Live Alone" (나 혼자 산다). Before debuting as a member of Sistar, she was a licensed hairdresser and worked in a hair salon. As a fitness devotee, Soyou frequents the gym at least four times a week focusing on weightlifting to strengthen and tone her figure. Her strenuous workout routine involves high-intensity exercises and deadlifts up to 50 kg in weight.
