Task: Explanation
Input (English): Yao Beina (; 26 September 1981 – 16 January 2015), also known as Bella Yao, was a Chinese singer. She participated in "Chinese Young Singer Championship" in 2008 and won the champion of the pop singing group. She was known as the singer of the theme songs of "Empresses in the Palace", "" and "Back to 1942". She also sang the pop version of "Let It Go" in Mandarin Chinese in the Disney CGI film, "Frozen" for the Mandarin Chinese dub when the film was released in China. She competed in "The Voice of China" television reality show. Question: Which Chinese singer recorded the Mandarin version of the song performed by singer Idina Menzel in the American version of Disney's 2013 animated feature film "Frozen"? Answer: Yao Beina
Output (English):  She also sang the pop version of Let It Go in Mandarin Chinese in the Disney CGI film, Frozen for the Mandarin Chinese dub when the film was released in China.