Oh Yeon-seo is a former member of a Vietnamese girl group.
Oh Yeon-seo ( born Oh Haet-nim , on June 22 , 1987 ) , is a South Korean actress and former member of South Korean girl group , LUV . The Sugababes are an English girl group , formed in 1998 with founding members Siobhán Donaghy , Mutya Buena and Keisha Buchanan .