After the success of the Swallow Sisters, Four Plus One, Chen Fen-lan, Hung Yen-ping, Li Pei-ching, Chiu Yuen-shu and Kang Ya-lan all took voice training from Hsieh.
繼「雙燕姊妹」後，陳芬蘭、洪燕萍、李珮菁、邱圓舒、康雅嵐、四加一合唱團，都曾跟謝騰輝學唱歌。