Question: To which group does the singer, who stars with Lee Sang-woo in the TV series All About My Mom belong ? 
Sentence (from "Goddess of Marriage"): Goddess of Marriage () is a 2013 South Korean romantic comedy-drama series starring Nam Sang-mi, Kim Ji-hoon, Lee Sang-woo, Lee Tae-ran, Kim Jung-tae, Jo Min-su, Kwon Hae-hyo, Jang Young-nam and Jang Hyun-sung.
Relevant evidence: No